PRME

Prime Medicine, Inc.$2.79-0.04 (-1.24%)

Prev Close$2.82·MCap$552.7M·P/E—·Vol1.50M·Yield—

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Buys (12M)

$10.13M

▼

Sells (12M)

$0.00

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Net Activity

Net Buyer

$10.13M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Prime Medicine, Inc. (PRME) has been exclusively buying, with 4 insider purchases totaling $10.13M and 0 insider sales totaling $0.00. The most recent insider transaction was by NELSEN ROBERT (Director), who purchased $10.00M worth of shares on Aug 1, 2025. Prime Medicine, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $552.7M.

PRME Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 1, 2025	NELSEN ROBERT	Director	Buy	3,030,300	$3.30	$10.00M1.7% OS	0
Jun 30, 2025	Liu David R.	10% Owner	Buy	21,000	$2.52	$52.8K	0
Jun 23, 2025	Liu David R.	10% Owner	Buy	21,000	$2.16	$45.4K	0
Jun 16, 2025	Liu David R.	10% Owner	Buy	21,000	$1.49	$31.2K	0
Jun 11, 2025	Liu David R.	10% Owner	Buy	21,000	$1.60	$33.6K	0
May 21, 2025	LEE ANN L.	Chief Technical Officer	Buy	100,000	$1.13	$113.0K	0
May 21, 2025	Reine Allan	Chief Executive Officer	Buy	125,000	$1.18	$147.2K	0
May 20, 2025	Brudnick Richard	Chief Business Officer	Buy	20,000	$1.19	$23.8K	0
Feb 20, 2024	NELSEN ROBERT	Director	Buy	3,200,000	$6.25	$20.00M1.8% OS	3,200,000
Oct 26, 2022	ARCH Venture Partners X, LLC	10% Owner	Buy	400,000	$17.00	$6.80M	6,128,297
Oct 26, 2022	Cahill Thomas	Director	Buy	400,000	$17.00	$6.80M	5,305,679

PRME Insider Buying Activity

The following table shows recent insider purchases of Prime Medicine, Inc. (PRME) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 1, 2025	NELSEN ROBERT	Director	Buy	3,030,300	$3.30	$10.00M1.7% OS	0
Jun 30, 2025	Liu David R.	10% Owner	Buy	21,000	$2.52	$52.8K	0
Jun 23, 2025	Liu David R.	10% Owner	Buy	21,000	$2.16	$45.4K	0
Jun 16, 2025	Liu David R.	10% Owner	Buy	21,000	$1.49	$31.2K	0
Jun 11, 2025	Liu David R.	10% Owner	Buy	21,000	$1.60	$33.6K	0
May 21, 2025	LEE ANN L.	Chief Technical Officer	Buy	100,000	$1.13	$113.0K	0
May 21, 2025	Reine Allan	Chief Executive Officer	Buy	125,000	$1.18	$147.2K	0
May 20, 2025	Brudnick Richard	Chief Business Officer	Buy	20,000	$1.19	$23.8K	0
Feb 20, 2024	NELSEN ROBERT	Director	Buy	3,200,000	$6.25	$20.00M1.8% OS	3,200,000
Oct 26, 2022	ARCH Venture Partners X, LLC	10% Owner	Buy	400,000	$17.00	$6.80M	6,128,297
Oct 26, 2022	Cahill Thomas	Director	Buy	400,000	$17.00	$6.80M	5,305,679