Home > Insider Trading > Filing (0001415889-25-021025)

Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1894562	Prime Medicine Inc.	PRME	Services-Computer Programming, Data Processing, Etc. (7370)	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1652044	Alphabet Inc.	1600 Amphitheatre Parkway Mountain View CA 94043	No	No	Yes	No
1861202	Gv 2021, L.p.	1600 Amphitheatre Parkway Mountain View CA 94043	No	No	Yes	No
1861206	Gv 2021 Gp, L.l.c.	1600 Amphitheatre Parkway Mountain View CA 94043	No	No	No	No
1861216	Gv 2021 Gp, L.p.	1600 Amphitheatre Parkway Mountain View CA 94043	No	No	Yes	No

Transaction Summary

Purchased:	1,500,000 shares	Avg. Price: $3.30	Total Value: $4,950,000.00
Number of Shares After Transactions:	3,262,440 shares

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-08-01	1,500,000	$3.30	3,262,440	No	4	P	Indirect	By GV 2021, L.P.

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	By GV 2021, L.P.

Footnotes

Represents shares purchased in connection with an underwritten public offering of the Issuer's Common Stock that closed on August 1, 2025.
The securities reported in this row are directly beneficially owned by GV 2021, L.P. (the "2021 Partnership"). The general partner of the 2021 Partnership is GV 2021 GP, L.P. (the "2021 GP"). The general partner of the 2021 GP is GV 2021 GP, L.L.C. ("GV 2021 LLC"). The sole member of GV 2021 LLC is Alphabet Holdings LLC ("Alphabet Holdings"). The sole member of Alphabet Holdings is XXVI Holdings Inc. ("XXVI"). The controlling stockholder of XXVI is Alphabet Inc. Each of the 2021 GP, GV 2021 LLC, Alphabet Holdings, XXVI, and Alphabet Inc. may be deemed to indirectly beneficially own (as the term is defined in Rule 13d-3 of the Securities Exchange Act of 1934, as amended) the securities directly beneficially owned by the 2021 Partnership. Each of the aforementioned parties disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.