CUSIP No. 91822J103 | 13D | Page 2 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Fund VI, L.P.
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
WC
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
PN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 3 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Partners VI, L.P.
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
PN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 4 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Partners VI, LLC
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 5 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Fund X Overage, L.P.
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
WC
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
PN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 6 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Partners X Overage, L.P.
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
WC
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
PN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 7 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
ARCH Venture Partners X, LLC
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 8 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Clinton Bybee
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
3,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
3,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
3,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
1.7%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 9 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Keith Crandell
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 10 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Robert Nelsen
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
13,026,057
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
7.3%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 11 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Kristina Burow
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
10,000,000
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
10,000,000
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
10,000,000
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
5.6%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 12 of 23 Pages |
1
|
NAMES OF REPORTING PERSONS
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Steven Gillis
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
AF
|
|
|
|||
|
|
||||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
332,512
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER
|
|
|
||
10,000,000
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
332,512
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER
|
|
|
||
10,000,000
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|
|
||
10,332,512
|
|
|
|||
|
|
||||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
5.8%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 91822J103 | 13D | Page 13 of 23 Pages |
Item 1.
|
Security and Issuer.
|
Item 2.
|
Identity and Background.
|
(a)
|
This statement is being filed by: (1) ARCH Venture Fund VI, L.P. ("ARCH Venture Fund VI"), (2) ARCH Venture Partners VI, L.P. ("AVP VI LP"), which is the sole general partner of ARCH Venture Fund VI, (3) ARCH Venture Partners VI, LLC ("AVP VI LLC"), which is the sole general partner of AVP VI LP, (4) ARCH Venture Fund X Overage, L.P. ("AVF OVERAGE"), (5) ARCH Venture Partners X Overage, L.P. ("OVERAGE GPLP"), which is the sole general partner of AVF OVERAGE, (6) ARCH Venture Partners X, LLC ("OVERAGE GPLLC"), which is the sole general partner of OVERAGE GPLP, (7) Clinton Bybee ("Bybee"), (8) Keith Crandell ("Crandell"), (9) Robert Nelsen ("Nelsen"), (10) Kristina Burow ("Burow") and (11) Steven Gillis ("Gillis") and, together with Bybee, Crandell, Nelsen and Burow, collectively, the "Managing Directors" and each individually, a "Managing Director"). Each of the individuals and entities above shall be referred to herein individually as a "Reporting Person" and collectively as the "Reporting Persons". AVP VI LP, AVP VI LLC, OVERAGE GPLP and OVERAGE GP LLC shall collectively be referred to herein as the "Control Entities."
|
(b) |
The business address of each of the Reporting Persons is 8755 West Higgins Road, Suite 1025, Chicago, IL, 60631.
|
(c) |
The principal business of each of ARCH Venture Fund VI and AVF OVERAGE is to invest and assist in developmental and emerging businesses located principally in the United States. The principal business of each of AVP VI LP and OVERAGE GPLP is to act as the general partner of ARCH Venture Fund VI and AVF Overage, respectively. The principal business of each of AVP VI LLC and OVERAGE GPLLC is to act as the general partner of AVP VI LP and OVERAGE GPLP, respectively. The principal business of each of the Managing Directors is to act as managing directors of AVP VI LLC or OVERAGE GPLLC and a number of affiliated partnerships with similar businesses.
|
(d) |
During the five years prior to the date hereof, none of the Reporting Persons has been convicted in a criminal proceeding.
|
(e) |
During the five years prior to the date hereof, none of the Reporting Persons has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction ending in a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, Federal or State securities laws or finding any violation with respect to such laws.
|
(f) |
Each of ARCH Venture Fund VI, AVF OVERAGE, AVP VI LP and OVERAGE GPLP is a Delaware limited partnership. Each of AVP VI LLC and OVERAGE GPLLC is a Delaware limited liability company. Each of the Managing Directors is a United States citizen.
|
CUSIP No. 91822J103 | 13D | Page 14 of 23 Pages |
Item 3.
|
Source and Amount of Funds or Other Consideration.
|
Item 4.
|
Purpose of Transaction.
|
(a)
|
The acquisition by any person of additional securities of the Issuer, or the disposition of securities of the Issuer;
|
(b)
|
An extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Issuer or any of its subsidiaries;
|
(c)
|
A sale or transfer of a material amount of assets of the Issuer or any of its subsidiaries;
|
(d)
|
Any change in the present board of directors or management of the Issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board;
|
(e)
|
Any material change in the present capitalization or dividend policy of the Issuer;
|
(f)
|
Any other material change in the Issuer's business or corporate structure;
|
(g)
|
Changes in the Issuer's charter, bylaws or instruments corresponding thereto or other actions which may impede the acquisition of control of the Issuer by any person;
|
(h)
|
Causing a class of securities of the Issuer to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association;
|
(i)
|
A class of equity securities of the Issuer becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Securities Exchange Act of 1934; or
|
(j)
|
Any action similar to any of those enumerated above.
|
CUSIP No. 91822J103 | 13D | Page 15 of 23 Pages |
Item 5.
|
Interest in Securities of the Issuer.
|
(a)
|
ARCH Venture Fund VI is the record owner of 3,026,057 shares of Common Stock (the "ARCH VI Shares") and AVF OVERAGE is the record owner of 10,000,000 shares of Common Stock ("AVF OVERAGE Shares" and combined with ARCH VI Shares, the "Record Shares").
|
(b)
|
Regarding the number of shares as to which such person has:
|
(i) |
sole power to vote or to direct the vote: See line 7 of cover sheets.
|
(ii) |
shared power to vote or to direct the vote: See line 8 of cover sheets.
|
(iii) |
sole power to dispose or to direct the disposition: See line 9 of cover sheets.
|
(iv) |
shared power to dispose or to direct the disposition: See line 10 of cover sheets.
|
(c)
|
Except as set forth above, none of the Reporting Persons has effected any transaction in the Common Stock during the last 60 days.
|
(d)
|
No other person is known to have the right to receive or the power to direct the receipt of dividends from, or any proceeds from the sale of, shares beneficially owned by any of the Reporting Persons.
|
(e)
|
Not applicable
|
CUSIP No. 91822J103 | 13D | Page 16 of 23 Pages |
Item 6.
|
Contracts, Arrangements, Undertakings or Relationships with Respect to Securities of the Issuer.
|
Item 7.
|
Material to be Filed as Exhibits.
|
CUSIP No. 91822J103 | 13D | Page 17 of 23 Pages |
CUSIP No. 91822J103 | 13D | Page 18 of 23 Pages |
CUSIP No. 91822J103 | 13D | Page 19 of 23 Pages |
CUSIP No. 91822J103 | 13D | Page 20 of 23 Pages |
CUSIP No. 91822J103 | 13D | Page 21 of 23 Pages |
By: |
ARCH Venture Partners VI, LLC
|
CUSIP No. 91822J103 | 13D | Page 22 of 23 Pages |
By: |
ARCH Venture Partners X, LLC
|
CUSIP No. 91822J103 | 13D | Page 23 of 23 Pages |
By: |
ARCH Venture Partners X, LLC
|