POWERS OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Mark McDonnell his or its 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, member, 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 his substitutes, may lawfully do or cause
to be done by virtue hereof. This Power of Attorney shall remain in full force
and effect with respect to each undersigned person unless and until six months
after such person is both no longer a Managing Director of ARCH Venture Partners
and no longer serving on the board of directors of any portfolio company of any
ARCH Venture Partners fund.
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 21th day
of February, 2019.
ARCH VENTURE FUND X, L.P.
By: ARCH Venture Partners X, L.P.
its General Partner
By: ARCH Venture Partners X, LLC
its General Partner
By: /s/ Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: /s/ Keith Crandell
Managing Director
ARCH VENTURE FUND X OVERAGE, L.P.
By: ARCH Venture Partners X Overage, L.P.
its General Partner
By: ARCH Venture Partners X, LLC
its General Partner
By: /s/ Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X OVERAGE, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: /s/ Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, LLC
By: /s/Keith Crandell
Managing Director
/s/ Keith Crandell
Keith Crandell
/s/ Kristina Burow
Kristina Burow
/s/ Robert Nelsen
Robert Nelsen
/s/ Steven Gillis
Steven Gillis
