Companies / Prime Medicine, Inc.

Prime Medicine, Inc.

Nasdaq: PRMECIK 1894562CAMBRIDGE, MA

Financials · FY2025

Revenue$4.63M
Net income$-201.14M
Total debt—
Cash$47.45M
Diluted EPS$-1.35
Shares outstanding181.4M

Ownership

181.4M shares outstanding · as of Jul 31, 2026
3.3%10%+ / strategic
Ownership
10%+ / strategic3.31%5,995,183
Institutions52.95%96,045,358
Public float43.74%79,336,315

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 5

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Insider% of sharesShares
Alenson CarmanFormerSee Remarks
——
Foster-Cheek Kaye IDirector
——
Lee Ann L.Chief Technical Officer
——
Nelsen RobertDirector · 10% owner
——
Reine AllanCEOChief Executive Officer · Director
——

Institutional holders 189

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HolderValue% of shares
Alphabet Inc.$61.12M9.13%
BlackRock, Inc.$35.43M5.29%
State Street Corporation$27.96M4.18%
Vanguard Group Inc$22.44M3.57%
ARK Investment Management LLC$18.63M2.96%
Balyasny Asset Management L.P.$14.35M2.27%
Sumitomo Mitsui Trust Group, Inc.$11.26M1.79%
Amova Asset Management Americas, Inc.$11.20M1.79%
Casdin Capital, LLC$10.99M1.75%
Woodline Partners LP$10.42M1.66%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jun 5, 2026Foster-Cheek Kaye I
Director
GrantStock Option (right to buy)—+75K
75,000
0.04% of shares
low
Jun 5, 2026Nelsen Robert
Director
GrantStock Option (right to buy)—+75K
75,000
0.04% of shares
low
Feb 23, 2026Lee Ann L.
Executive
GrantStock Option (right to buy)—+375K
375,000
0.21% of shares
low
Feb 26, 2026Reine Allan
CEO
GrantStock Option (right to buy)—+1.3M
1,300,000
0.72% of shares
low
Feb 23, 2026Alenson Carman
Executive
GrantStock Option (right to buy)—+140K
140,000
0.08% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
T. Rowe Price Investment Management, Inc.Passive13G/A—5,995,183—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
PRMECommon StockEquity74168J101BBG011RT3R55