0000899243-23-019101.txt : 20230914 0000899243-23-019101.hdr.sgml : 20230914 20230914212902 ACCESSION NUMBER: 0000899243-23-019101 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 6 CONFORMED PERIOD OF REPORT: 20230914 FILED AS OF DATE: 20230914 DATE AS OF CHANGE: 20230914 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: CRANDELL KEITH CENTRAL INDEX KEY: 0001219039 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256501 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: NELSEN ROBERT CENTRAL INDEX KEY: 0001219042 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256499 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BYBEE CLINTON CENTRAL INDEX KEY: 0001219043 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256498 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: GILLIS STEVEN CENTRAL INDEX KEY: 0001229592 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256500 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ARCH Venture Partners XII, L.P. CENTRAL INDEX KEY: 0001979765 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256503 BUSINESS ADDRESS: STREET 1: 8755 W HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 BUSINESS PHONE: 7733806600 MAIL ADDRESS: STREET 1: 8755 W HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ARCH Venture Partners X, LLC CENTRAL INDEX KEY: 0001769012 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256505 BUSINESS ADDRESS: STREET 1: 8755 W. HIGGINS ROAD, SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 BUSINESS PHONE: 773-380-6600 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD, SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ARCH Venture Fund XII, L.P. CENTRAL INDEX KEY: 0001906837 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256502 BUSINESS ADDRESS: STREET 1: 8755 W. HIGGINS ROAD, SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 BUSINESS PHONE: 773-380-6600 MAIL ADDRESS: STREET 1: 8755 W. HIGGINS ROAD, SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ARCH Venture Partners XII, LLC CENTRAL INDEX KEY: 0001979548 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41802 FILM NUMBER: 231256504 BUSINESS ADDRESS: STREET 1: 8755 W HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 BUSINESS PHONE: 7733806600 MAIL ADDRESS: STREET 1: 8755 W HIGGINS ROAD STREET 2: SUITE 1025 CITY: CHICAGO STATE: IL ZIP: 60631 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Neumora Therapeutics, Inc. CENTRAL INDEX KEY: 0001885522 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 844367680 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 490 ARSENAL WAY, SUITE 200 CITY: WATERTOWN STATE: MA ZIP: 02472 BUSINESS PHONE: (857) 760-0900 MAIL ADDRESS: STREET 1: 490 ARSENAL WAY, SUITE 200 CITY: WATERTOWN STATE: MA ZIP: 02472 FORMER COMPANY: FORMER CONFORMED NAME: RBNC Therapeutics, Inc. DATE OF NAME CHANGE: 20210929 3 1 doc3.xml FORM 3 SUBMISSION X0206 3 2023-09-14 0 0001885522 Neumora Therapeutics, Inc. NMRA 0001769012 ARCH Venture Partners X, LLC 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001979548 ARCH Venture Partners XII, LLC 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001979765 ARCH Venture Partners XII, L.P. 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001906837 ARCH Venture Fund XII, L.P. 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001219039 CRANDELL KEITH 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001229592 GILLIS STEVEN 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001219042 NELSEN ROBERT 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001219043 BYBEE CLINTON 8755 W. HIGGINS ROAD , SUITE 1025 CHICAGO IL 60631 0 0 1 0 Common Stock 5310358 I By ARCH Venture Fund X, L.P. Common Stock 5310358 I By ARCH Venture Fund X Overage, L.P. Series A-1 Preferred Stock Common Stock 684167 I By ARCH Venture Fund VII, L.P. Series A-1 Preferred Stock Common Stock 1144973 I By ARCH Venture Fund VIII Overage, L.P. Series A-2 Preferred Stock Common Stock 6895021 I By ARCH Venture Fund X, L.P. Series A-2 Preferred Stock Common Stock 6576400 I By ARCH Venture Fund X Overage, L.P. Series B Preferred Stock Common Stock 2124143 I By ARCH Venture Fund XII, L.P. Reflects a 1-for-7.8463 reverse stock split of the Issuer's outstanding securities effected prior to the effectiveness of the Issuer's S-1 Registration Statement on September 8, 2023. Represents shares held directly by ARCH Venture Fund X, L.P. (ARCH X). ARCH Venture Partners X, L.P. (AVP X LP) is the sole general partner of ARCH X. Represents shares held directly by ARCH Venture Fund X Overage, L.P. (ARCH X Overage). ARCH Venture Partners X Overage, L.P. (AVP X Overage LP) is the sole general partner of ARCH X Overage. ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any. The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer will automatically convert on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering. Represents shares held directly by ARCH Venture Fund VII, L.P. (ARCH VII). ARCH Venture Partners VII, L.P. (AVP VII LP) is the sole general partner of ARCH VII, and ARCH Venture Partners VII, LLC (AVP VII LLC) is the sole general partner of AVP VII LP. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VII LLC (AVP VII LLC Managing Directors). AVP VII LP and AVP VII LLC may be deemed to beneficially own the shares held by ARCH VII, and each of the AVP VII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VII. Each of AVP VII LP, AVP VII LLC and the AVP VII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any. Represents shares held directly by ARCH Venture Fund VIII Overage, L.P. (ARCH VIII Overage). ARCH Venture Partners VIII, LLC (AVP VIII LLC) is the general partner of ARCH VIII Overage. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VIII LLC (the AVP VIII LLC Managing Directors). AVP VIII LLC may be deemed to beneficially own the shares held by ARCH VIII Overage, and each of the AVP VIII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VIII Overage. Each of AVP VIII LLC and the AVP VIII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any. Represents shares held directly by ARCH Venture Fund XII, L.P. (ARCH XII). ARCH Venture Partners XII, L.P. (AVP XII LP) is the general partner of ARCH XII. ARCH Venture Partners XII, LLC (AVP XII LLC) is the general partner of AVP XII LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP XII LLC (the AVP XII LLC Committee Members). Each of AVP XII LP and AVP XII LLC may be deemed to beneficially own the shares held by ARCH XII, and each of the AVP XII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XII. Each of AVP XII LP, AVP XII LLC and the AVP XII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any. This Form 3 is filed jointly by ARCH X, AVP X LP, ARCH X Overage, AVP X Overage LP, AVP X LLC, ARCH VII, AVP VII LP, AVP VII LLC, ARCH VIII Overage, AVP VIII LLC, ARCH XII, AVP XII LP, AVP XII LLC, Robert Nelsen, Steven Gillis, Keith Crandell, Clinton Bybee (collectively, the "Reporting Persons"). Kristina Burow has direct ownership of Series A-1 Preferred Stock and is filing her own Form 3 separately. Exhibit 24 - Power of Attorney Exhibit 24.1 - Power of Attorney Exhibit 24.2 - Power of Attorney Exhibit 24.3 - Power of Attorney Exhibit 24.4 - Power of Attorney Form 2 of 2 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/ Mark McDonnell, attorney-in-fact 2023-09-14 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/ Mark McDonnell, attorney-in-fact 2023-09-14 ARCH VENTURE FUND VII, L.P.; By: ARCH Venture Partners VII, L.P., Its: General Partner By: ARCH Venture Partners VII, LLC, Its: General Partner By: /s/ Mark McDonnell, attorney-in-fact 2023-09-14 ARCH VENTURE FUND VIII OVERAGE, L.P.; By: ARCH Venture Partners VIII, LLC, Its General Partner By: /s/ Mark McDonnell, attorney-in-fact 2023-09-14 ARCH VENTURE FUND XII, L.P.; By: ARCH Venture Partners XII, L.P., Its General Partner By: ARCH Venture Partners XII, LLC., Its General Partner By: /s/ Mark McDonnell, attorney-in-fact 2023-09-14 Keith Crandell, Managing Director By: /s/ Mark McDonnell, as Attorney-in-Fact 2023-09-14 Steven Gillis, Managing Director By: /s/ Mark McDonnell, as Attorney-in-Fact 2023-09-14 Robert Nelsen, Managing Director By: /s/ Mark McDonnell, as Attorney-in-Fact 2023-09-14 Clinton Bybee, Managing Director By: /s/ Mark McDonnell, as Attorney-in-Fact 2023-09-14 EX-24 2 attachment1.htm EX-24 DOCUMENT 
                                                                   Exhibit 24

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints Mark McDonnell 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 his 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
29th day of January, 2021.

                                   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/Robert Nelsen
                                               ------------------------
                                               Managing Director

                                   ARCH VENTURE PARTNERS X, L.P.

                                   By: ARCH Venture Partners X, LLC
                                       its General Partner

                                       By: /s/ Robert Nelsen
                                           ---------------------------
                                           Managing Director

                                   ARCH VENTURE PARTNERS X, LLC

                                   By: /s/ Robert Nelsen
                                       -------------------------
                                       Managing Director

                                   /s/ Keith Crandell
                                   ----------------------
                                   Keith Crandell

                                   /s/Robert Nelsen
                                   ----------------------
                                   Robert Nelsen

                                   /s/Kristina Burow
                                   ----------------------
                                   Kristina Burow

                                   /s/ Steven Gillis
                                   ----------------------
                                   Steven Gillis
EX-24.1 3 attachment2.htm EX-24.1 DOCUMENT 
                                                                   Exhibit 24.1

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints Mark McDonnell 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 his 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
29th day of January, 2021.

                                   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/ Robert Nelsen
                                               ----------------------
                                               Managing Director

                                   ARCH VENTURE PARTNERS X OVERAGE, L.P.

                                   By: ARCH Venture Partners X, LLC
                                       its General Partner

                                   By: /s/ Robert Nelsen
                                       ------------------------
                                       Managing Director

                                   ARCH VENTURE PARTNERS X, LLC

                                   By: /s/ Robert Nelsen
                                       ------------------------
                                       Managing Director

                                   /s/ Keith Crandell
                                   ----------------------
                                   Keith Crandell

                                   /s/ Robert Nelsen
                                   ----------------------
                                   Robert Nelsen

                                   /s/ Kristina Burow
                                   ----------------------
                                   Kristina Burow

                                   /s/ Steven Gillis
                                   ---------------------
                                   Steven Gillis
EX-24.2 4 attachment3.htm EX-24.2 DOCUMENT 
                                                                   Exhibit 24.2

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints Mark McDonnell 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 his substitutes,
may lawfully do or cause to be done by virtue hereof. This power of attorney is
perpetual and shall survive the death, incapacity, dissolution or termination
of the undersigned.

        IN WITNESS WHEREOF, this Power of Attorney has been signed as of the
7th day of May, 2013.

                                   ARCH VENTURE FUND VII, L.P.

                                   By: ARCH Venture Partners VII, L.P.
                                       its General Partner

                                       By: ARCH Venture Partners VII, LLC
                                           its General Partner

                                           By: /s/ Keith Crandell
                                               --------------------------
                                               Managing Director

                                   ARCH VENTURE PARTNERS VII, L.P.

                                   By: ARCH Venture Partners VII, LLC
                                       its General Partner

                                       By: /s/ Keith Crandell
                                           --------------------------
                                           Managing Director

                                   ARCH VENTURE PARTNERS VII, LLC

                                   By: /s/ Keith Crandell
                                       -------------------------
                                       Managing Director

                                   /s/ Keith Crandell
                                   ------------------------
                                   Keith Crandell

                                   /s/ Robert Nelsen
                                  -------------------------
                                   Robert Nelsen

                                   /s/Clinton Bybee
                                   ------------------------
                                   Clinton Bybee
EX-24.3 5 attachment4.htm EX-24.3 DOCUMENT 
                                                                Exhibit 24.3

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints Mark McDonnell 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 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
26th day of July, 2017.

                                   ARCH VENTURE FUND VIII OVERAGE, L.P.

                                   By: ARCH Venture Partners VIII, LLC
                                       its General Partner

                                       By: /s/ Keith Crandell
                                           ---------------------------
                                           Managing Director

                                   ARCH VENTURE PARTNERS VIII, LLC

                                   By: /s/ Keith Crandell
                                       -------------------------
                                        Managing Director
EX-24.4 6 attachment5.htm EX-24.4 DOCUMENT 
                                                                   Exhibit 24.4

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints Mark McDonnell 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 his 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
19th day of April, 2022.

                                   ARCH VENTURE FUND XII, L.P.

                                   By: ARCH Venture Partners XII, L.P.
                                       its General Partner

                                       By: ARCH Venture Partners XII, LLC
                                           its General Partner

                                           By: /s/ Keith Crandell
                                               ------------------------
                                               Managing Director

                                   ARCH VENTURE PARTNERS XII, L.P.

                                   By: ARCH Venture Partners XII, LLC
                                       its General Partner

                                       By: /s/ Keith Crandell
                                           --------------------------
                                           Managing Director

                                   ARCH VENTURE PARTNERS XII, LLC

                                   By: /s/ Keith Crandell
                                       ----------------------
                                       Managing Director

                                   /s/ Keith Crandell
                                   ----------------------
                                   Keith Crandell

                                   /s/ Robert Nelsen
                                   -----------------------
                                   Robert Nelsen

                                   /s/ Kristina Burow
                                   -----------------------
                                   Kristina Burow

                                   /s/Steven Gillis
                                   -----------------------
                                   Steven Gillis