F1Consists of 990,100 shares sold by Battery Ventures IX, L.P. ("Battery Ventures IX") and 9,900 shares sold by Battery Investment Partners IX, LLC ("BIP IX"). Battery Partners IX, LLC ("BP IX") is the sole general partner of Battery Ventures IX and the sole managing member of BIP IX. BP IX's investment advisor is Battery Management Corp. (together with BP IX, the "Battery Companies"). Neeraj Agrawal, Michael Brown, Thomas J. Crotty, Jesse Feldman, Richard D. Frisbie, Kenneth P. Lawler, Roger H. Lee, R. David Tabors and Scott R. Tobin are the managing members and officers of the Battery Companies and may be deemed to share voting and dispositive power over the shares held by Battery Ventures IX and BIP IX.
F2The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Remarks

The reporting persons beneficially own more than 10% of a class of the Issuer's equity securities registered under Section 12 of the Exchange Act. Due to the limited number of joint filers that can be included on one form, Battery Ventures IX, L.P., Battery Investment Partners IX, LLC, Battery Partners IX, LLC, Battery Management Corp., Neeraj Agrawal, Thomas J. Crotty, Jesse Feldman, Richard D. Frisbie, Kenneth P. Lawler, R. David Tabors, Scott R. Tobin and Roger H. Lee have filed two separate forms simultaneously, both of which relate to the same securities of the Issuer beneficially owned by such reporting persons. Michael Brown is a director of the Issuer and files Section 16 reports separately.