GV 2019, L.P. - 30 Sep 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
134,654,455 shares
Disclosed Ownership
16,562,498 shares
Ownership
12.3%
Form type
SCHEDULE 13G/A
Filing time
12 Nov 2025, 16:30:21 UTC
Date of event
30 Sep 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% 10,100,058 0 10,100,058 /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% 10,100,058 0 10,100,058 /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% 10,100,058 0 10,100,058 /s/ Inga Goldbard Inga Goldbard/General Counsel
GV 2021, L.P. 2.4% 3,262,440 0 3,262,440 /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% 3,262,440 0 3,262,440 /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% 3,262,440 0 3,262,440 /s/ Inga Goldbard Inga Goldbard/General Counsel
GV 2023, L.P. 2.4% 3,200,000 0 3,200,000 /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% 3,200,000 0 3,200,000 /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% 3,200,000 0 3,200,000 /s/ Inga Goldbard Inga Goldbard/General Counsel
Alphabet Holdings LLC 12.3% 16,562,498 0 16,562,498 /s/ Kathryn W. Hall Kathryn W. Hall/Secretary
XXVI Holdings Inc. 12.3% 16,562,498 0 16,562,498 /s/ Kathryn W. Hall Kathryn W. Hall/Assistant Secretary
Alphabet Inc. 12.3% 16,562,498 0 16,562,498 /s/ Kathryn W. Hall Kathryn W. Hall/Assistant Secretary