Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
8% Convertible Note Issued 9/9/2013^F2,F1	—	Jan 30, 2015	C	—	D	—	Mar 31, 2015	Common Stock	—	—	D
8% Convertible Note Issued 2/26/14^F2,F1	—	Jan 30, 2015	C	—	D	—	Mar 31, 2015	Common Stock	—	—	D
8% Convertible Note Issued 12/2/2014^F2,F1	—	Jan 30, 2015	C	—	D	—	Mar 31, 2015	Common Stock	—	—	D

Explanation of responses

F1The outstanding principal and accrued interest on the Convertible Notes automatically converted into shares of the Issuer's Common Stock upon the closing of the Issuer's initial public offering at 85% of the Issuer's initial public offering price per share.
F2The securities are directly held by New Enterprise Associates 12, Limited Partnership ("NEA 12") and indirectly held by NEA Partners 12, Limited Partnership ("NEA Partners 12"), the sole general partner of NEA 12, NEA 12 GP, LLC ("NEA 12 GP"), the sole general partner of NEA Partners 12, and the individual managers of NEA 12 GP (NEA Partners 12, NEA 12 GP and the individual managers of NEA 12 GP together, the "NEA 12 Indirect Reporting Persons"). The individual managers of NEA 12 GP are M. James Barrett, Peter J. Barris, Forest Baskett, Ryan D. Drant, Patrick J. Kerins, Krishna "Kittu" Kolluri, and Scott D. Sandell. The NEA 12 Indirect Reporting Persons disclaim beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the NEA 12 shares in which the NEA 12 Indirect Reporting Persons have no pecuniary interest.