Gv 2019, L.P. - Sep 30, 2025 SCHEDULE 13G/A Report for Prime Medicine, Inc. Common Stock, par value $0.00001 per share (PRME)

Filing Manager
GV 2019, L.P.
Reporting Manager
Alphabet Holdings LLC
Security
Prime Medicine, Inc. Common Stock, par value $0.00001 per share
Symbol
PRME
Shares outstanding
135M shares
Disclosed Ownership
16.6M shares
Ownership
12.3%
Form type
SCHEDULE 13G/A
Date filed
11/12/2025, 04:30 PM
Date of event
Sep 30, 2025
SEC
View on sec.gov

Reporting Managers (12)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
GV 2019, L.P. 7.5% 10.1M 0 10.1M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2019 GP, L.L.C., the General Partner of GV 2019 GP, L.P., its General Partner
GV 2019 GP, L.P. 7.5% 10.1M 0 10.1M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2019 GP, L.L.C., its General Partner
GV 2019 GP, L.L.C. 7.5% 10.1M 0 10.1M /s/ Inga Goldbard Inga Goldbard/General Counsel
GV 2021, L.P. 2.4% 3.26M 0 3.26M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2021 GP, L.L.C., the General Partner of GV 2021 GP, L.P., its General Partner
GV 2021 GP, L.P. 2.4% 3.26M 0 3.26M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2021 GP, L.L.C., its General Partner
GV 2021 GP, L.L.C. 2.4% 3.26M 0 3.26M /s/ Inga Goldbard Inga Goldbard/General Counsel
GV 2023, L.P. 2.4% 3.2M 0 3.2M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2023 GP, L.L.C., the General Partner of GV 2023 GP, L.P., its General Partner
GV 2023 GP, L.P. 2.4% 3.2M 0 3.2M /s/ Inga Goldbard Inga Goldbard/General Counsel of GV 2023 GP, L.L.C., its General Partner
GV 2023 GP, L.L.C. 2.4% 3.2M 0 3.2M /s/ Inga Goldbard Inga Goldbard/General Counsel
Alphabet Holdings LLC 12.3% 16.6M 0 16.6M /s/ Kathryn W. Hall Kathryn W. Hall/Secretary
XXVI Holdings Inc. 12.3% 16.6M 0 16.6M /s/ Kathryn W. Hall Kathryn W. Hall/Assistant Secretary
Alphabet Inc. 12.3% 16.6M 0 16.6M /s/ Kathryn W. Hall Kathryn W. Hall/Assistant Secretary