Prime MedicinePRME

13F holders, Q1 2026 (March 31)
192holders +9
30new positions
24sold out
6famous investors
$3.48avg. 13F price*

At the end of Q1 2026, 192 institutions reported holding Prime Medicine Inc. (PRME) in their 13F filings, up 9 from Q4 2025. 30 opened new positions and 24 sold out. The largest holders were Alphabet Inc. ($57.6M), BlackRock, Inc. ($29.6M) and State Street Corp. ($22.1M). 6 famous investors held it, including Cathie Wood (0.2% of ARK Investment Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Prime Medicine Inc.
CUSIP
74168J101
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 115Q1 2024Q2 2024: 122Q2 2024Q3 2024: 116Q3 2024Q4 2024: 132Q4 2024Q1 2025: 125Q1 2025Q2 2025: 121Q2 2025Q3 2025: 167Q3 2025Q4 2025: 183Q4 2025Q1 2026: 192Q1 2026Q2 2026: 187Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions30$16.3M
Exits24$6.4M

All 13F filers, Q4 2025 → Q1 2026: 10,806,202 shares bought and 6,778,472 shares sold, net +4,027,730 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 192 holders

Alphabet Inc. 1.44% No change 16,562,498 $57.6M
BlackRock, Inc. 0.00% Add +2.8% 8,501,708 $29.6M
State Street Corp. 0.00% Add +24.5% 6,345,125 $22.1M
ARK Investment Management 0.17% Add +16.4% 6,246,827 $21.7M
T. Rowe Price Investment Management, Inc. 0.01% Reduce -8.6% 5,481,893 $19.1M
Vanguard Capital Management LLC 0.00% — 4,474,162 $15.6M
Balyasny Asset Management L.P. 0.03% Add +32.0% 4,123,365 $14.3M
Casdin Capital, LLC 0.83% No change 3,167,175 $11.0M
Woodline Partners LP 0.04% Add +0.0% 3,003,313 $10.5M
Sumitomo Mitsui Trust Group, Inc. 0.01% Reduce -9.4% 2,940,793 $10.2M
Amova Asset Management Americas, Inc. 0.14% Reduce -9.4% 2,940,793 $10.2M
UBS Group AG 0.00% Add +18.4% 2,888,418 $10.1M
Geode Capital Management, LLC 0.00% Add +4.4% 2,743,700 $9.6M
ADAR1 Capital Management, LLC 0.42% New 1,973,282 $6.9M
FMR LLC 0.00% Reduce -18.7% 1,769,476 $6.2M
Redmile Group, LLC 0.37% New 1,590,832 $5.5M
Two Sigma Investments, LP 0.00% Reduce -3.5% 1,572,811 $5.5M
D. E. Shaw & Co. 0.00% Reduce -10.2% 1,393,621 $4.8M
Farallon Capital Management, L.L.C. 0.03% No change 1,240,843 $4.3M
Goldman Sachs Group Inc. 0.00% Reduce -44.7% 970,425 $3.4M
Charles Schwab Investment Management Inc. 0.00% Reduce -2.1% 917,212 $3.2M
Northern Trust Corp. 0.00% Add +5.3% 886,716 $3.1M
Vanguard Portfolio Management LLC 0.00% — 862,204 $3.0M
JPMorgan Chase & Co. 0.00% Add +93.7% 844,154 $2.7M
Greenwich Wealth Management LLC 0.11% Add +1.4% 750,001 $2.6M
Renaissance Technologies 0.00% Reduce -35.5% 741,039 $2.6M
Vanguard Fiduciary Trust Co. 0.00% — 717,002 $2.5M
Susquehanna International Group, LLP 0.00% Reduce -39.2% 715,829 $2.5M
Morgan Stanley 0.00% Reduce -45.3% 639,457 $2.2M
HRT Financial LP 0.01% Reduce -6.5% 612,769 $2.1M
Bank of America Corp. 0.00% Reduce -11.0% 577,004 $2.0M
AQR Capital Management 0.00% Add +33.5% 554,935 $1.9M
Moore Capital Management, LP 0.07% No change 500,000 $1.7M
Chelsea Counsel Co. 0.72% Add +103.7% 462,340 $1.6M
Alessandra Capital Management, LLC 1.26% New 425,510 $1.5M
Bollard Group LLC 0.04% No change 361,136 $1.3M
HighTower Advisors, LLC 0.00% Reduce -15.0% 340,255 $1.2M
Citadel Advisors 0.00% Add +198.0% 336,358 $1.2M
Wells Fargo & Company 0.00% Add +8.5% 319,550 $1.1M
Dimensional Fund Advisors LP 0.00% Add +262.3% 304,522 $1.1M
Wellington Management Group LLP 0.00% Add +12.0% 278,120 $968K
Nuveen, LLC 0.00% Add +9.7% 275,931 $960K
Bank of New York Mellon Corp 0.00% Add +8.3% 267,219 $930K
Rafferty Asset Management, LLC 0.00% Add +14.8% 215,582 $750K
IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.05% Add +15.1% 205,389 $715K
Green Alpha Advisors, LLC 0.66% Add +0.1% 191,171 $665K
Swiss National Bank 0.00% Add +5.0% 178,600 $622K
Keystone Financial Group 0.04% Add +28.0% 166,010 $578K
Deutsche Bank AG 0.00% Add +6.4% 157,440 $548K
XTX Topco Ltd 0.01% Add +115.7% 157,282 $547K
Elevate Capital Advisors, LLC 0.34% Add +254.1% 151,069 $526K
Marshall Wace, LLP 0.00% New 141,957 $494K
Bridgeway Capital Management, LLC 0.01% No change 134,800 $469K
T. Rowe Price Associates Inc. 0.00% Add +27.9% 133,755 $466K
Alliancebernstein L.P. 0.00% Add +12.7% 122,460 $425K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +6.4% 122,463 $421K
Steward Partners Investment Advisory, LLC 0.00% Reduce -0.8% 117,456 $409K
FIL Ltd 0.00% Reduce -0.3% 115,206 $401K
Rhumbline Advisers 0.00% Add +5.4% 114,269 $398K
Engineers Gate Manager LP 0.00% Add +82.4% 110,348 $384K
Palumbo Wealth Management LLC 0.09% Add +19.5% 102,246 $356K
Invesco Ltd. 0.00% Add +70.6% 96,875 $337K
Profund Advisors LLC 0.01% Add +37.6% 95,806 $333K
TD Asset Management Inc 0.00% No change 94,148 $328K
Squarepoint Ops LLC 0.00% Reduce -56.9% 94,066 $327K
Rockefeller Capital Management L.P. 0.00% Reduce -24.7% 91,401 $318K
California State Teachers Retirement System 0.00% Reduce -0.5% 86,473 $301K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -13.9% 85,300 $297K
Mariner, LLC 0.00% Add +116.0% 78,398 $273K
Concurrent Investment Advisors, LLC 0.00% New 74,177 $258K
Ieq Capital, LLC 0.00% Add +99.3% 74,013 $258K
Virtus Investment Advisers, LLC 0.06% Add +2.5% 66,508 $231K
LPL Financial LLC 0.00% Add +101.8% 66,424 $231K
Legal & General Group Plc 0.00% Reduce -17.7% 66,444 $231K
Russell Investments Group, Ltd. 0.00% Add +841.5% 64,273 $224K
Barclays PLC 0.00% Reduce -82.5% 63,773 $222K
Tudor Investment Corporation 0.00% New 61,546 $214K
Janus Henderson Group PLC 0.00% No change 60,900 $212K
&partners 0.00% Reduce -1.5% 59,470 $207K
VANGUARD ASSET MANAGEMENT, Ltd 0.00% — 59,021 $205K
Aquatic Capital Management LLC 0.01% New 54,230 $189K
Los Angeles Capital Management LLC 0.00% New 52,615 $183K
Ameriprise Financial Inc. 0.00% Reduce -8.3% 49,584 $173K
Citigroup Inc. 0.00% Reduce -7.8% 47,232 $164K
Quadrature Capital Ltd 0.00% Reduce -11.3% 46,893 $163K
Mutual Advisors, LLC 0.00% No change 45,200 $157K
Vanguard Global Advisers, LLC 0.00% — 44,269 $154K
MetLife Investment Management, LLC 0.00% Reduce -23.2% 44,208 $154K
VARCOV Co. 0.05% New 41,964 $146K
IvyRock Asset Management (HK) Ltd 0.08% No change 41,800 $145K
DRW Securities, LLC 0.01% New 40,964 $143K
Jones Financial Companies LLLP 0.00% Reduce -0.2% 40,307 $136K
Axq Capital, LP 0.02% Add +10.0% 36,742 $128K
Wealth Enhancement Advisory Services, LLC 0.00% Add +44.4% 37,681 $125K
Kingsview Wealth Management, LLC 0.00% Add +133.3% 35,000 $122K
BNP Paribas Financial Markets 0.00% Add +250.3% 34,413 $120K
Cwm, LLC 0.00% Add +33.0% 33,811 $118K
Oppenheimer & Co. Inc. 0.00% Add +170.7% 33,656 $117K
Crestwood Advisors Group, LLC 0.00% Add +1.3% 32,374 $113K
China Universal Asset Management Co., Ltd. 0.01% Add +8.9% 32,033 $111K
State of New Jersey Common Pension Fund D 0.00% New 30,845 $107K
Police & Firemen's Retirement System of New Jersey 0.00% Add +45.3% 30,751 $107K
Intech Investment Management LLC 0.00% Reduce -12.8% 30,538 $106K
Transcend Capital Advisors, LLC 0.01% Add +13.5% 30,070 $105K
Sei Investments Co. 0.00% New 29,183 $102K
Envestnet Asset Management Inc. 0.00% Reduce -10.8% 29,040 $101K
Manufacturers Life Insurance Company, The 0.00% Reduce -8.6% 28,872 $100K
Creative Planning 0.00% Add +57.9% 28,246 $98K
E Fund Management Co., Ltd. 0.00% — 27,099 $94K
Blue Bell Private Wealth Management, LLC 0.01% New 27,015 $94K
Vanguard Investments Australia, Ltd. 0.00% — 26,124 $91K
Abacus Planning Group, Inc. 0.01% No change 25,188 $88K
Turtle Creek Wealth Advisors, LLC 0.01% New 25,000 $87K
Nomura Holdings Inc. 0.00% Add +0.1% 24,823 $86K
Arizona State Retirement System 0.00% Add +2.9% 24,791 $86K
Group One Trading LLC 0.00% Reduce -76.0% 24,766 $86K
ProShare Advisors LLC 0.00% Reduce -12.2% 22,968 $80K
Vanguard Personalized Indexing Management, LLC 0.00% Reduce -7.2% 21,954 $76K
Tower Research Capital LLC (TRC) 0.00% Add +2603.1% 21,814 $76K
Shelton Wealth Management, LLC 0.03% No change 20,066 $70K
KLP Kapitalforvaltning As 0.00% No change 18,500 $64K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +106.8% 18,225 $63K
Scientech Research LLC 0.05% Reduce -19.9% 17,931 $62K
Voya Investment Management LLC 0.00% Reduce -0.8% 17,345 $60K
Thompson Davis & Co., Inc. 0.04% Reduce -24.2% 17,240 $60K
Commonwealth Equity Services, LLC 0.00% Reduce -52.2% 16,437 $57K
Graham Capital Management, L.P. 0.00% Reduce -86.0% 16,015 $56K
Magnetar Financial LLC 0.00% New 15,784 $55K
Levin Capital Strategies, L.P. 0.00% No change 15,000 $52K
Martingale Asset Management L P 0.00% Add +0.3% 14,848 $52K
Prudential Financial Inc. 0.00% New 14,755 $51K
Sanctuary Advisors, LLC 0.00% Reduce -5.2% 13,894 $48K
Benjamin Edwards Inc. 0.00% New 13,852 $48K
Sterling Investment Advisors, Ltd. 0.01% No change 13,400 $47K
JTC Employer Solutions Trustee Ltd 0.00% No change 13,249 $46K
Prime Capital Investment Advisors, LLC 0.00% Reduce -7.9% 12,945 $45K
Cambridge Investment Research Advisors, Inc. 0.00% New 12,337 $43K
Mercer Global Advisors Inc. 0.00% New 12,305 $43K
Pictet Asset Management Holding SA 0.00% New 12,107 $42K
Raymond James Financial Inc. 0.00% Reduce -55.5% 12,044 $42K
Sequoia Financial Advisors, LLC 0.00% New 11,673 $41K
Teacher Retirement System of Texas 0.00% Reduce -9.6% 11,058 $38K
Victory Capital Management Inc. 0.00% Add +0.1% 10,817 $38K
Wealthfront Advisers LLC 0.00% New 10,379 $36K
Polymer Capital Management (US) LLC 0.01% Reduce -71.3% 10,317 $36K
Glen Eagle Advisors, LLC 0.00% No change 10,000 $35K
Forum Financial Management, LP 0.00% No change 10,000 $35K
Federation des caisses Desjardins du Quebec 0.00% Reduce -20.8% 9,500 $33K
Mirae Asset Global Investments Co., Ltd. 0.00% Add +7.3% 9,415 $33K
Nisa Investment Advisors, LLC 0.00% Add +105.6% 9,346 $33K
Royal Bank of Canada 0.00% Add +89.3% 9,254 $32K
New York State Common Retirement Fund 0.00% No change 8,434 $29K
Ameritas Investment Partners, Inc. 0.00% Add +42.5% 8,407 $29K
Lanark Financial, Inc. 0.00% No change 5,000 $17K
Signaturefd, LLC 0.00% No change 5,000 $17K
Allworth Financial LP 0.00% Add +41.4% 4,405 $15K
Osaic Holdings, Inc. 0.00% Reduce -51.4% 4,097 $14K
GF Fund Management Co. LTD. 0.00% Add +13.8% 4,036 $14K
Sterling Capital Management LLC 0.00% Reduce -39.6% 3,462 $12K
Financial Connections Group, Inc. 0.00% No change 3,712 $12K
MTM Investment Management, LLC 0.00% No change 3,090 $11K
Owl Creek Wealth Partners LLC 0.00% — 2,615 $9K
Corient Private Wealth LP 0.00% Add +6.3% 41,221 $9K
EverSource Wealth Advisors, LLC 0.00% Add +13.5% 2,000 $7K
Scarborough Advisors, LLC 0.00% Add +0.1% 1,258 $4K
Essential Partners LLC 0.00% Add +356.1% 1,008 $4K
NewEdge Advisors, LLC 0.00% No change 1,000 $3K
Optiver Holding B.V. 0.00% Add +457.5% 892 $3K
GAMMA Investing LLC 0.00% Add +482.9% 647 $2K
Fairman Group, LLC 0.00% No change 500 $2K
Fortitude Family Office, LLC 0.00% Add +47.3% 436 $2K
SBI Securities Co., Ltd. 0.00% Add +29.0% 391 $1K
MAI Capital Management 0.00% Add +40.9% 386 $1K
Caitong International Asset Management Co., Ltd 0.00% Reduce -99.0% 383 $1K
Rothschild Investment LLC 0.00% Add +10.7% 382 $1K
Vanguard National Trust Co 0.00% — 334 $1K
PNC Financial Services Group, Inc. 0.00% No change 319 $1K
Basecamp Wealth Advisors LLC 0.00% No change 287 $999
Parkside Financial Bank & Trust 0.00% No change 285 $992
Arax Advisory Partners 0.00% New 230 $800
True Wealth Design, LLC 0.00% Add +32.2% 152 $529
Farther Finance Advisors, LLC 0.00% Add +116.9% 154 $522
Sunbelt Securities, Inc. 0.00% No change 80 $278
Harbour Investments, Inc. 0.00% New 74 $258
Keating Financial Advisory Services, Inc. 0.00% New 59 $205
NFSG Corp 0.00% New 45 $157
US Bancorp \de 0.00% New 33 $115
National Bank of Canada 0.00% New 10 $35
SJS Investment Consulting Inc. 0.00% New 10 $35
Twin Peaks Wealth Advisors, LLC 0.00% New 3 $10
IFP Advisors, Inc 0.00% Reduce -80.0% 2 $7
Covestor Ltd 0.00% No change 31 $0

"% of holder's portfolio" is PRME's weight in each manager's 13F, not the share of Prime Medicine Inc. the manager owns.