Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F2	Feb 9, 2017	J	1,190,324	$0.00	D	2,618,712	I	See Footnote
Common Stock^F3	Feb 9, 2017	J	28,521	$0.00	D	62,745	I	See Footnote
Common Stock^F4	Feb 9, 2017	J	9,161	$0.00	A	16,490	I	See Footnote
Common Stock^F5	Feb 9, 2017	J	11,978	$0.00	A	21,560	I	See Footnote
Common Stock^F6	Feb 9, 2017	J	14,662	$0.00	A	26,394	I	See Footnote

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1Represents a pro rata distribution, and not a purchase or sale, without additional consideration by Accel Europe L.P. ("AE") and Accel Europe Investors 2004 L.P. ("AEI") to their respective limited and general partners.
F2The reportable securities are owned directly by AE. James R. Swartz and Kevin Comolli (collectively, the "AEA Managers") are the managers of Accel Europe Associates L.L.C. ("AEA LLC"). AEA LLC is the general partner of Accel Europe Associates L.P. ("AEA LP"), which is the general partner of AE. The AEA Managers, AEA LLC and AEA LP may be deemed to share voting and investment power over the shares held by AE and each disclaim beneficial ownership of shares held by AE except to the extent of any pecuniary interest therein.
F3The reportable securities are owned directly by AEI. The AEA Managers are the managers of AEA LLC. AEA LLC is the general partner of AEI. The AEA Managers and AEA LLC may be deemed to share voting and investment power over the shares held by AEI and each disclaim beneficial ownership of shares held by AEI except to the extent of any pecuniary interest therein.
F4The reportable securities are owned directly by James R. Swartz.
F5The reportable securities are owned directly by Homestake Partners L.P. James R. Swartz is a general partner of Homestake Partners L.P.
F6The reportable securities are owned directly by Burn3, LLC. James R. Swartz is a managing member of Burn3, LLC.