Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2,F3,F4	Jul 6, 2017	C	1,712,655	—	A	1,737,981	D
Common Stock^F1,F3,F4,F5	Jul 6, 2017	C	443,016	—	A	449,567	D
Common Stock^F1,F3,F4,F6	Jul 6, 2017	C	61,122	—	A	62,026	D
Common Stock^F1,F3,F4,F7	Jul 6, 2017	C	543,201	—	A	551,233	D
Common Stock^F1,F3,F4,F8	Jul 6, 2017	C	2,759,994	—	A	2,800,807	I	See footnotes
Common Stock^F1,F3,F4,F9	Jul 6, 2017	C	2,759,994	—	A	2,800,807	I	See footnotes
Common Stock^{F1,F3,F4,F10,F11}	Jul 6, 2017	C	2,759,994	—	A	2,800,807	I	See footnotes

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series E Preferred^F2,F3,F4,F1	—	Jul 6, 2017	C	570,885	D	—	—	Common Stock	1,712,656	D
Series E Preferred^F3,F4,F5,F1	—	Jul 6, 2017	C	147,672	D	—	—	Common Stock	443,016	D
Series E Preferred^F3,F4,F6,F1	—	Jul 6, 2017	C	20,374	D	—	—	Common Stock	61,122	D
Series E Preferred^F3,F4,F7,F1	—	Jul 6, 2017	C	181,067	D	—	—	Common Stock	543,201	D
Series E Preferred^F3,F4,F8,F1	—	Jul 6, 2017	C	919,998	D	—	—	Common Stock	2,759,994	I
Series E Preferred^F3,F4,F9,F1	—	Jul 6, 2017	C	919,998	D	—	—	Common Stock	2,759,994	I
Series E Preferred^F3,F4,F10,F1	—	Jul 6, 2017	C	919,998	D	—	—	Common Stock	2,759,994	I

Explanation of responses

F1The Series E Preferred Stock converted into the Issuer's common stock ("Common Stock") on a 3-for-1 basis and had no expiration date.
F10These shares are owned indirectly by Holdings. See footnotes (3) and (4) above for a description of the relationship among the IVP VIII Funds, IVPA VIII L.P., IVPA VIII, Ltd. and Holdings.
F11This report is the first of three filings mode on this 10th day of July, 2017, to report transactions that occurred on July 6, 2017
F2Shares held of record by Insight Venture Partners VIII, L.P. ("IVP VIII").
F3The amount listed as owned by each of IVP VIII, Insight Venture Partners (Cayman) VIII, L.P. ("IVP Cayman VIII"), Insight Venture Partners VIII (Co-Investors), L.P. ("IVP VIII Co-Investors") and Insight Venture Partners (Delaware) VIII, L.P. ("IVP Delaware VIII" together with IVP VIII, IVP Cayman VIII and IVP VIII Co-Investors, the "IVP VIII Funds") may be deemed to be attributable to Insight Venture Associates VIII, L.P. ("IVPA VIII, L.P."), Insight Venture Associates VIII, Ltd. ("IVPA VIII, Ltd.") and Insight Holdings Group, LLC ("Holdings") because the general partner of the IVP VIII Funds is IVPA VIII, L.P., the general partner of which is IVPA VIII, Ltd., the sole shareholder of which is Holdings.
F4Each of Jeffrey Horing, Deven Parekh, Peter Sobiloff, Michael Triplett and Jeffrey Lieberman is a member of the board of managers of Holdings and as such shares voting and dispositive power over the shares held by the IVP VIII Funds. The foregoing is not an admission by any of Holdings, IVPA VIII, L.P. or IVPA VIII, Ltd., that it is the beneficial owner of any of the shares held by the IVP VIII Funds. Each of Messrs. Horing, Parekh, Sobiloff, Triplett and Lieberman disclaims beneficial ownership of the shares held by the IVP VIII Funds except to the extent of his pecuniary interest therein.
F5Shares held of record by IVP Cayman VIII.
F6Shares held of record by IVP VIII Co-Investors.
F7Shares held of record by IVP Delaware VIII.
F8These shares are owned indirectly by IVPA VIII, L.P. See footnotes (3) and (4) above for a description of the relationship among the IVP VIII Funds, IVPA VIII L.P., IVPA VIII, Ltd. and Holdings.
F9These shares are owned indirectly by IVPA VIII, Ltd. See footnotes (3) and (4) above for a description of the relationship among the IVP VIII Funds, IVPA VIII L.P., IVPA VIII, Ltd. and Holdings.

Remarks

Exhibit List: Exhibit 99.1 - Joint Filers' Signatures