Insider filing report for Changes in Beneficial Ownership
- Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
- Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
- Peter Lynch
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
Prime Medicine, Inc.
(Name of Issuer)
Common Stock par value $0.00001 per share
(Title of Class of Securities)
74168J101
(CUSIP Number)
December 31, 2022
(Date of Event Which Requires Filing of This Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
☐ Rule 13d-1(b)
☐ Rule 13d-1(c)
☒ Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes).
CUSIP No. 74168J101 |
13G | Page 2 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
ARCH Venture Fund X, L.P.
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 74168J101 |
13G | Page 3 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
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 | CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 74168J101 |
13G | Page 4 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
ARCH Venture Partners X, L.P.
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 74168J101 |
13G | Page 5 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
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 | CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 74168J101 |
13G | Page 6 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
ARCH Venture Partners X, LLC
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
OO
|
CUSIP No. 74168J101 |
13G | Page 7 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
Keith Crandell
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
IN
|
CUSIP No. 74168J101 |
13G | Page 8 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
Steven Gillis
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
IN
|
CUSIP No. 74168J101 |
13G | Page 9 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
Kristina Burow
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
0
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
0
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,256,594
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
IN
|
CUSIP No. 74168J101 |
13G | Page 10 of 16 Pages |
| 1 | NAMES OF REPORTING PERSON(S)
Robert Nelsen
|
|||
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) ☐ (b) ☐ | ||
| 3 | SEC USE ONLY
|
|||
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
|
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH |
5 |
SOLE VOTING POWER
16,080
| ||
| 6 | SHARED VOTING POWER
12,256,594
| |||
| 7 | SOLE DISPOSITIVE POWER
16,080
| |||
| 8 | SHARED DISPOSITIVE POWER
12,256,594
|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,272,674
|
|||
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
|
☐ | ||
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.6%
|
|||
12 |
TYPE OF REPORTING PERSON
IN
|
CUSIP No. 74168J101 |
13G | Page 11 of 16 Pages |
| Item 1(a). | Name of Issuer: |
Prime Medicine, Inc. (the “Issuer”).
| Item 1(b). | Address of Issuer's Principal Executive Offices: |
21 Erie St., Cambridge, MA 02139 USA
| Item 2(a). | Name of Person Filing: |
ARCH Venture Fund X, L.P. (“AVF X”); ARCH Venture Partners X, L.P. (“AVP X LP”); ARCH Venture Partners X, LLC (“AVP X LLC”); ARCH Venture Fund X Overage, L.P. (“AVF X Overage”); ARCH Venture Partners X Overage, L.P. (“AVP X Overage GP”) (collectively, the “Reporting Entities” and individually, each a “Reporting Entity”); and Keith Crandell (“Crandell”), Robert Nelsen (“Nelsen”), Kristina Burow (“Burow”) and Steven Gillis (“Gillis”) (collectively, the “Investment Committee” and individually, each a “Committee Member”). The Reporting Entities and the Committee Members collectively are referred to as the “Reporting Persons”.
| Item 2(b). | Address of Principal Business Office or, if none, Residence: |
8755 W. Higgins Road, Suite 1025, Chicago, IL 60631
| Item 2(c). | Citizenship: |
Each of AVF X, AVP X LP, AVF X Overage and AVP X Overage GP, are limited partnerships organized under the laws of the State of Delaware. AVP X LLC is a limited liability company organized under the laws of the State of Delaware. Each Committee Member is a US citizen.
| Item 2(d). | Title of Class of Securities. |
Common stock, par value $0.00001 per share.
| Item 2(e). | CUSIP Number. |
74168J101
| Item 3. | If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: |
Not Applicable.
CUSIP No. 74168J101 |
13G | Page 12 of 16 Pages |
| Item 4. | Ownership: |
| (a) |
Amount beneficially owned:
AVF X is the record owner of 6,128,297 shares of Common Stock (the “AVF X Shares”) as of December 31, 2022. AVP X LP, as the sole general partner of AVF X, may be deemed to beneficially own the AVF X Shares. AVF X Overage is the record owner of 6,128,297 shares of Common Stock (the “AVF X Overage Shares”, combined with AVF X Shares, the “Record Shares”) as of December 31, 2022. AVP X Overage GP, as the sole general partner of AVF X Overage, may be deemed to beneficially own the AVF X Overage Shares. AVP X LLC, as the sole general partner of AVP X LP and AVP X Overage GP, may be deemed to beneficially own the Record Shares. As Committee Members of AVP X LLC, each Committee Member may also be deemed to share the power to direct the disposition and vote of the Record Shares.
|
| (b) |
Percent of class:
See line 11 of the cover sheets. The percentages set forth on the cover sheet for each Reporting Person is based upon 97,208,342 shares of common stock outstanding as of November 8, 2022 as reported on the Issuer’s Form 10-Q as filed with the Securities and Exchange Commission on November 14, 2022. |
| (c) | Number of shares as to which such person has: |
| (i) |
Sole power to vote or to direct the vote:
See line 5 of the cover sheets. | |
| (ii) |
Shared power to vote or to direct the vote:
See line 6 of the cover sheets. | |
| (iii) |
Sole power to dispose or to direct the disposition:
See line 7 of the cover sheets. | |
| (iv) |
Shared power to dispose or to direct the disposition:
See line 8 of the cover sheets. | |
Each Reporting Person disclaims beneficial ownership of such shares of Common Stock except for the shares, if any, such Reporting Person holds of record.
| Item 5. | Ownership of Five Percent or Less of a Class. |
Not applicable.
| Item 6. | Ownership of More than Five Percent on Behalf of Another Person. |
Not applicable.
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. |
Not applicable.
| Item 8. | Identification and Classification of Members of the Group. |
Not applicable.
| Item 9. | Notice of Dissolution of Group. |
Not applicable.
| Item 10. | Certifications. |
Not applicable.
CUSIP No. 74168J101 |
13G | Page 13 of 16 Pages |
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Dated: February 13, 2023
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: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, LLC
By: *
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: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X OVERAGE, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: *
Keith Crandell
Managing Director
CUSIP No. 74168J101 |
13G | Page 14 of 16 Pages |
*
Keith Crandell
*
Robert Nelsen
*
Kristina Burow
*
Steven Gillis
* By: /s/ Mark McDonnell
Mark McDonnell as
Attorney-in-Fact
* This Schedule 13G was executed by Mark McDonnell pursuant to Powers of Attorney filed as Exhibit 24 and 24.1 to the Form 3 relating to the beneficial ownership of shares of Prime Medicine, Inc. by the Reporting Persons filed with the Securities and Exchange Commission on October 19, 2022 and incorporated herein in its entirety by reference.
CUSIP No. 74168J101 |
13G | Page 15 of 16 Pages |
Exhibit 1
AGREEMENT
Pursuant to Rule 13d-1-(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of shares of stock of Prime Medicine, Inc.
This Agreement may be executed in any number of counterparts, each of which shall be deemed an original.
Dated: February 13, 2023
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: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X, LLC
By: *
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: *
Keith Crandell
Managing Director
ARCH VENTURE PARTNERS X OVERAGE, L.P.
By: ARCH Venture Partners X, LLC
its General Partner
By: *
Keith Crandell
Managing Director
CUSIP No. 74168J101 |
13G | Page 16 of 16 Pages |
*
Keith Crandell
*
Robert Nelsen
*
Kristina Burow
*
Steven Gillis
* By: /s/ Mark McDonnell
Mark McDonnell as
Attorney-in-Fact
* This Agreement was executed by Mark McDonnell pursuant to Powers of Attorney filed as Exhibit 24 and 24.1 to the Form 3 relating to the beneficial ownership of shares of Prime Medicine, Inc. by the Reporting Persons filed with the Securities and Exchange Commission on October 19, 2022 and incorporated herein in its entirety by reference.