Prime Medicine Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:PRME Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
15 Feb 24	BuyUS$20,000,000	Arch Venture Partners, L.P.	Company		3,200,000	US$6.25

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 38.3%.

Top 25 shareholders own 93.14% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
15.8%	David Liu	20,156,945	US$67.3m	0%	no data
12.1%	Arch Venture Partners, L.P.	15,456,594	US$51.6m	0%	4.97%
11.8%	GV Management Company, LLC	15,062,498	US$50.3m	0%	2.86%
8.63%	Bristol-Myers Squibb Company	11,006,163	US$36.8m	0%	no data
4.99%	Nikko Asset Management Co., Ltd.	6,372,910	US$21.3m	96.8%	0.01%
4.79%	Newpath Management, L.P.	6,105,679	US$20.4m	0%	no data
4.44%	ARK Investment Management LLC	5,660,719	US$18.9m	-7.61%	0.14%
4.2%	T. Rowe Price Group, Inc.	5,353,248	US$17.9m	1.55%	no data
4.13%	BlackRock, Inc.	5,266,775	US$17.6m	3.06%	no data
3.83%	The Vanguard Group, Inc.	4,890,313	US$16.3m	-19.6%	no data
3.42%	Keith Gottesdiener	4,361,078	US$14.6m	0%	no data
2.93%	Impresa Management LLC	3,736,707	US$12.5m	-4.71%	6.63%
1.72%	Millennium Management LLC	2,198,240	US$7.3m	65.2%	0.01%
1.63%	Redmile Group, LLC	2,074,350	US$6.9m	0%	0.36%
1.4%	Mwg Management Ltd.	1,792,210	US$6.0m	0%	6.99%
1.07%	Geode Capital Management, LLC	1,359,979	US$4.5m	4.89%	no data
0.9%	State Street Global Advisors, Inc.	1,146,949	US$3.8m	3.9%	no data
0.84%	Vestal Point Capital, LP	1,070,000	US$3.6m	138%	0.27%
0.81%	Baker Bros. Advisors LP	1,028,466	US$3.4m	0%	0.03%
0.76%	Jeremy Duffield	965,001	US$3.2m	0%	no data
0.7%	Deerfield Management Company, L.P. Series C	896,960	US$3.0m	0%	0.05%
0.59%	Farallon Capital Management, L.L.C.	750,000	US$2.5m	0%	0.01%
0.57%	Greenwich Wealth Management, LLC	733,001	US$2.4m	12.3%	0.14%
0.55%	EcoR1 Capital, LLC	700,000	US$2.3m	0%	0.08%
0.54%	Avidity Partners Management, L.P.	694,000	US$2.3m	0%	0.12%