Stocks
PRME Prime Medicine, Inc.

PRME

Prime Medicine, Inc.

Company with tickers: PRME

CIK

1894562

CUSIP

74168J101

Shares Outstanding

180,617,451

13F Activity (30d)

169 filings 166 filers

Date	Insider	Role	Type	Shares	Price	Value	After
2026-04-16	Makhni Svetlana Ni	Chief Financial Officer	Award	800,000	—	—	800,000
2026-04-16	Makhni Svetlana Ni	Chief Financial Officer	Other	0	—	—	0
2026-02-26	Reine Allan	Director, Chief Executive Officer	Award	1,300,000	—	—	1,300,000
2026-02-23	LEE ANN L.	Chief Technical Officer	Award	375,000	—	—	375,000
2026-02-23	Alenson Carman	See Remarks	Award	140,000	—	—	140,000
2025-08-01	Schenkein David P	Director	Other	39,062	—	—	0
2025-08-01	Schenkein David P	Director	Award	45,000	—	—	45,000
2025-08-01	Schenkein David P	Director	Award	39,062	—	—	39,062
2025-08-01	Schenkein David P	Director	Other	45,000	—	—	0
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Award	45,000	—	—	45,000
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Other	45,000	—	—	0
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Award	39,062	—	—	39,062
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Other	39,062	—	—	0
2025-08-01	Marrazzo Jeffrey D	Director	Other	45,000	—	—	0
2025-08-01	Marrazzo Jeffrey D	Director	Other	250,000	—	—	0
2025-08-01	Chung Wendy	Director	Award	9,006	—	—	9,006
2025-08-01	Chung Wendy	Director	Other	13,510	—	—	0
2025-08-01	Chung Wendy	Director	Other	39,062	—	—	0
2025-08-01	Chung Wendy	Director	Award	45,000	—	—	45,000
2025-08-01	Chung Wendy	Director	Other	45,000	—	—	0
2025-08-01	Chung Wendy	Director	Other	9,006	—	—	0
2025-08-01	Chung Wendy	Director	Award	39,062	—	—	39,062
2025-08-01	Chung Wendy	Director	Award	13,510	—	—	13,510
2025-08-01	Reine Allan	Director, Chief Executive Officer	Award	850,000	—	—	850,000
2025-08-01	Reine Allan	Director, Chief Executive Officer	Other	850,000	—	—	0
2025-08-01	GV 2021 GP, L.L.C.	10% Owner	Buy	1,500,000	$3.30	$4,950,000	3,262,440
2025-08-01	ARCH Venture Partners XII, LLC	10% Owner	Other	6,128,297	—	—	6,128,297
2025-08-01	ARCH Venture Partners XII, LLC	10% Owner	Buy	3,030,300	$3.30	$9,999,990	6,230,300
2025-08-01	ARCH Venture Partners XII, LLC	10% Owner	Other	6,128,297	—	—	6,128,297
2025-08-01	LEE ANN L.	Chief Technical Officer	Award	180,995	—	—	180,995
2025-08-01	LEE ANN L.	Chief Technical Officer	Other	180,995	—	—	0
2025-08-01	LEE ANN L.	Chief Technical Officer	Award	180,995	—	—	180,995
2025-08-01	LEE ANN L.	Chief Technical Officer	Other	180,995	—	—	0
2025-08-01	Kelly Michael Aaron	Director	Award	39,062	—	—	39,062
2025-08-01	Kelly Michael Aaron	Director	Other	13,510	—	—	0
2025-08-01	Kelly Michael Aaron	Director	Award	13,510	—	—	13,510
2025-08-01	Kelly Michael Aaron	Director	Other	45,000	—	—	0
2025-08-01	Kelly Michael Aaron	Director	Award	45,000	—	—	45,000
2025-08-01	Kelly Michael Aaron	Director	Other	9,006	—	—	0
2025-08-01	Kelly Michael Aaron	Director	Other	39,062	—	—	0
2025-08-01	Kelly Michael Aaron	Director	Award	9,006	—	—	9,006
2025-08-01	Foster-Cheek Kaye I	Director	Other	45,000	—	—	0
2025-08-01	Foster-Cheek Kaye I	Director	Other	13,510	—	—	0
2025-08-01	Foster-Cheek Kaye I	Director	Other	39,062	—	—	0
2025-08-01	Foster-Cheek Kaye I	Director	Other	9,006	—	—	0
2025-08-01	Foster-Cheek Kaye I	Director	Award	9,006	—	—	9,006
2025-08-01	Foster-Cheek Kaye I	Director	Award	13,510	—	—	13,510
2025-08-01	Foster-Cheek Kaye I	Director	Award	45,000	—	—	45,000
2025-08-01	Foster-Cheek Kaye I	Director	Award	39,062	—	—	39,062
2025-08-01	Cahill Thomas	Director	Award	45,000	—	—	45,000
2025-08-01	Cahill Thomas	Director	Other	39,062	—	—	0
2025-08-01	Cahill Thomas	Director	Award	39,062	—	—	39,062
2025-08-01	Cahill Thomas	Director	Other	45,000	—	—	0
2025-08-01	Alenson Carman	See Remarks	Award	6,254	—	—	6,254
2025-08-01	Alenson Carman	See Remarks	Other	6,254	—	—	0
2025-08-01	Alenson Carman	See Remarks	Award	90,498	—	—	90,498
2025-08-01	Alenson Carman	See Remarks	Other	90,498	—	—	0
2025-08-01	Marrazzo Jeffrey D	Director	Other	92,000	—	—	0
2025-08-01	Marrazzo Jeffrey D	Director	Award	250,000	—	—	250,000
2025-08-01	Marrazzo Jeffrey D	Director	Award	92,000	—	—	92,000
2025-08-01	Marrazzo Jeffrey D	Director	Award	45,000	—	—	45,000
2025-08-01	Alenson Carman	See Remarks	Award	16,083	—	—	16,083
2025-08-01	Alenson Carman	See Remarks	Other	90,498	—	—	0
2025-08-01	Alenson Carman	See Remarks	Other	16,083	—	—	0
2025-08-01	Alenson Carman	See Remarks	Award	90,498	—	—	90,498
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Other	6,128,297	—	—	6,128,297
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Buy	3,030,300	$3.30	$9,999,990	6,230,300
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Other	6,128,297	—	—	6,128,297
2025-08-01	NELSEN ROBERT	Director, 10% Owner	Other	16,080	—	—	16,080
2025-08-01	ARCH Venture Partners X, LLC	10% Owner	Buy	3,030,300	$3.30	$9,999,990	6,230,300
2025-08-01	ARCH Venture Partners X, LLC	10% Owner	Other	6,128,297	—	—	6,128,297
2025-08-01	ARCH Venture Partners X, LLC	10% Owner	Other	6,128,297	—	—	6,128,297
2025-06-30	Liu David R.	10% Owner	Buy	21,000	$2.52	$52,830	20,240,945
2025-06-23	Liu David R.	10% Owner	Buy	21,000	$2.16	$45,402	20,219,945
2025-06-16	Liu David R.	10% Owner	Buy	21,000	$1.49	$31,196	20,198,945
2025-06-11	Liu David R.	10% Owner	Buy	21,000	$1.60	$33,590	20,177,945
2025-06-04	Marrazzo Jeffrey D	Director	Award	55,000	—	—	55,000
2025-06-04	NELSEN ROBERT	Director, 10% Owner	Award	55,000	—	—	55,000
2025-06-04	Foster-Cheek Kaye I	Director	Award	55,000	—	—	55,000
2025-06-04	Chung Wendy	Director	Award	55,000	—	—	55,000
2025-06-04	Schenkein David P	Director	Award	55,000	—	—	55,000
2025-06-04	Kelly Michael Aaron	Director	Award	55,000	—	—	55,000
2025-06-04	Cahill Thomas	Director	Award	55,000	—	—	55,000
2025-05-21	LEE ANN L.	Chief Technical Officer	Buy	100,000	$1.13	$113,000	100,000
2025-05-21	Reine Allan	Director, Chief Executive Officer	Buy	125,000	$1.18	$147,150	125,000
2025-05-20	Brudnick Richard	Director	Buy	20,000	$1.19	$23,790	20,000
2025-05-19	Marrazzo Jeffrey D	Director	Award	800,000	—	—	800,000
2025-05-19	Reine Allan	Director, Chief Executive Officer	Award	2,000,000	—	—	2,000,000
2025-05-08	Gottesdiener Keith Michael	Director, See Remarks	Award	100,000	—	—	300,000
2025-05-08	LEE ANN L.	Chief Technical Officer	Award	80,416	—	—	241,248
2025-05-08	Reine Allan	Director, Chief Executive Officer	Award	75,000	—	—	850,000
2025-02-28	Gottesdiener Keith Michael	Director, See Remarks	Award	500,000	—	—	500,000
2025-02-27	Brudnick Richard	Director	Award	225,000	—	—	225,000
2025-02-27	Reine Allan	Director, Chief Executive Officer	Award	275,000	—	—	275,000
2025-02-27	Alenson Carman	See Remarks	Award	90,500	—	—	90,500
2025-02-27	Goldwasser Meredith	SVP, Strategy & Corporate Ops.	Award	90,500	—	—	90,500
2025-02-27	Duffield Jeremy	Chief Scientific Officer	Award	275,000	—	—	275,000
2025-02-27	LEE ANN L.	Chief Technical Officer	Award	275,000	—	—	275,000
2024-12-05	Brudnick Richard	Director	Award	19,300	—	—	57,900
2024-12-05	Reine Allan	Director, Chief Executive Officer	Award	75,000	—	—	775,000