Prime Medicine Ownership | Who Owns Prime Medicine?

Overview Forecast RevenueFinancials Chart

Prime Medicine Ownership Summary

Prime Medicine is owned by 41.00% institutional investors, 17.62% insiders, and 41.38% retail investors. Alphabet is the largest institutional shareholder, holding 12.82% of PRME shares. ARK Genomic Revolution ETF is the top mutual fund, with 2.73% of its assets in Prime Medicine shares.

PRME Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Prime Medicine	41.00%	17.62%	41.38%
Sector	Healthcare Stocks	232.64%	10.66%	-143.30%
Industry	Biotech Stocks	382.13%	10.41%	-292.54%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Alphabet	16.56M	12.82%	$91.76M
T. rowe price investment management	9.22M	7.13%	$51.06M
Blackrock funding, inc. /de	8.27M	5.15%	$28.69M
Vanguard group	6.47M	4.03%	$22.44M
Farallon capital management	4.75M	3.68%	$26.32M
Ark investment management	5.37M	3.34%	$18.63M
Casdin capital	3.17M	2.45%	$17.55M
Woodline partners lp	3.00M	2.32%	$16.63M
Ra capital management	3.00M	2.32%	$16.62M
Fmr	2.81M	2.18%	$15.58M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Mwg management	1.79M	12.21%	$9.93M
Alphabet	16.56M	3.81%	$91.76M
Casdin capital	3.17M	1.46%	$17.55M
Green alpha advisors	190.88K	0.61%	$662.36K
Ecor1 capital	1.54M	0.41%	$8.55M
Chelsea counsel	208.21K	0.26%	$514.28K
Ra capital management	3.00M	0.20%	$16.62M
Nikko asset management americas	3.25M	0.13%	$11.20M
Ark investment management	5.37M	0.12%	$18.63M
Greenwich wealth management	740.00K	0.11%	$2.57M

Top Buyers

Holder	Shares	% Assets	Change
Farallon capital management	4.75M	0.11%	4.00M
Woodline partners lp	3.00M	0.08%	3.00M
Ra capital management	3.00M	0.20%	3.00M
T. rowe price investment management	9.22M	0.03%	2.73M
Blackrock funding, inc. /de	8.27M	0.00%	2.62M

Top Sellers

Holder	Shares	% Assets	Change
Redmile group	87.12K	0.05%	-1.99M
Baker bros. advisors lp	-	-	-1.03M
Fmr	2.81M	0.00%	-931.35K
Westwood group	-	-	-883.13K
Samsara biocapital	-	-	-405.23K

New Positions

Holder	Shares	% Assets	Change	Value
Woodline partners lp	3.00M	0.08%	3.00M	$16.63M
Ra capital management	3.00M	0.20%	3.00M	$16.62M
Adage capital partners gp	771.36K	0.01%	771.36K	$4.27M
Verition fund management	290.98K	0.00%	290.98K	$1.01M
Wellington management group llp	205.32K	0.00%	205.32K	$1.14M

Sold Out

Holder	Change
Larson financial group	-6.00
Federated hermes	-6.00
Cordant	-33.00
Massmutual trust co fsb/adv	-104.00
Parallel advisors	-110.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	124	-29.55%	65,805,123	-28.75%	40	0.80%	77	-34.19%	22	-29.03%
Sep 30, 2025	168	33.33%	92,064,582	56.73%	71	3.45%	110	69.23%	31	-8.82%
Jun 30, 2025	125	0.81%	58,714,059	-1.59%	45	2.19%	65	4.84%	33	-5.71%
Mar 31, 2025	124	-4.62%	60,152,185	-4.70%	45	1.64%	61	-12.86%	35	9.38%
Dec 31, 2024	132	11.86%	64,335,371	-6.37%	53	1.64%	72	35.85%	32	6.67%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
ARK Genomic Revolution ETF	4.93M	2.73%	-
ARK Genomic Revolution	4.79M	2.65%	17.87K
State Street® SPDR® S&P® Biotech ETF	3.22M	1.78%	-17.32K
Vanguard Total Stock Mkt Idx Inv	3.12M	1.73%	148.40K
Vanguard US Total Market Shares ETF	2.16M	1.65%	-
Amova ARK Pstv Chg Innovt P JPY Acc	2.60M	1.44%	-156.47K
iShares Russell 2000 ETF	2.40M	1.33%	2.40M
Nikko AM ARK Disruptive Innovation A USD	1.31M	1.00%	-
Nikko AM ARK Pstv Chg Innovt P JPY Acc	1.25M	0.93%	-6.92K
US Small-Cap Growth II Equity Comp	1.13M	0.86%	-15.60K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 01, 2025	GV 2021 GP, L.L.C.	-	Buy	$4.95M
Aug 01, 2025	NELSEN ROBERT		Buy	$10.00M
Aug 01, 2025	ARCH Venture Partners XII, LLC	-	Buy	$10.00M
Aug 01, 2025	ARCH Venture Partners X, LLC	-	Buy	$10.00M
Jun 30, 2025	Liu David R.	-	Buy	$52.83K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	-
2025 Q3	4	-
2025 Q2	7	-
2025 Q1	-	-
2024 Q4	-	-

PRME Ownership FAQ

Who Owns Prime Medicine?

Prime Medicine shareholders are primarily institutional investors at 41.00%, followed by 17.62% insiders and 41.38% retail investors. The average institutional ownership in Prime Medicine's industry, Biotech Stocks , is 382.13%, which Prime Medicine falls below.

Who owns the most shares of Prime Medicine?

Prime Medicine’s largest shareholders are Alphabet (16.56M shares, 12.82%), T. rowe price investment management (9.22M shares, 7.13%), and Blackrock funding, inc. /de (8.27M shares, 5.15%). Together, they hold 25.11% of Prime Medicine’s total shares outstanding.

Does Blackrock own Prime Medicine?

BlackRock is not among the top 10 institutional shareholders of Prime Medicine.

Who is Prime Medicine’s biggest shareholder by percentage of total assets invested?

Mwg management is Prime Medicine’s biggest shareholder by percentage of total assets invested, with 12.21% of its assets in 1.79M Prime Medicine shares, valued at 9.93M$.

Who is the top mutual fund holder of Prime Medicine shares?

ARK Genomic Revolution ETF is the top mutual fund holder of Prime Medicine shares, with 2.73% of its total shares outstanding invested in 4.93M Prime Medicine shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools