POWER OF ATTORNEY



KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes

and appoints William P. Collatos, Brion B. Applegate, Christopher T.

Mitchell, Victor E. Parker, Jr., Benjamin C. Spero, Brian M. Regan and

Carolina Picazo, and each of them, with full power to act without the

others, as his true and lawful attorney-in-fact, with full power of

substitution, to sign any and all instruments, certificates and documents

that may be necessary, desirable or appropriate to be executed on behalf

of himself as an individual or in his capacity as a direct or indirect

general partner, director, officer or manager of any partnership,

corporation or limited liability company, pursuant to section 13 or 16

of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),

and any and all regulations promulgated thereunder, and to file the same,

with all exhibits thereto, and any other documents in connection therewith,

with the Securities and Exchange Commission, and with any other entity

when and if such is mandated by the Exchange Act or by the Financial

Industry Regulatory Authority, granting unto said attorney-in-fact full

power and authority to do and perform each and every act and thing necessary,

desirable or appropriate, fully to all intents and purposes as he might or

could do in person, thereby ratifying and confirming all that said

attorney-in-fact, or h is substitutes, may lawfully do or cause to be done

by virtue hereof.



IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 17th

day of February, 2016.









/s/ Brion B. Applegate

Brion B. Applegate



/s/ William P. Collatos

William P. Collatos



/s/ Christopher T. Mitchell

Christopher T. Mitchell



/s/ Victor E. Parker, Jr.

Victor E. Parker, Jr.



/s/ Benjamin C. Spero

Benjamin C. Spero



/s/ Stephen M. LeSieur

Stephen M. LeSieur



/s/ Peter T. Jensen

Peter T. Jensen



/s/ Ronan Cunningham

Ronan Cunningham



/s/ Brian M. Regan

Brian M. Regan