PRME Institutional Ownership
Who owns Prime Medicine, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 187 funds reported holding PRME at Jun 30, 2026, together owning 58.8% of the company.
- ●83 buying vs 90 selling
- ▲Held by funds +4.5 pts
- ▼Funds holding -5
- ▲Superinvestors: 4 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 187 | 192 | −2.6% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 107M | 98.6M | +8.2% |
| Held by funds | 58.8% | 54.3% | +4.5 pts |
| New positions | 22 | 30 | −26.7% |
| Increased | 61 | 71 | −14.1% |
| Reduced | 67 | 50 | +34.0% |
| Sold out | 23 | 25 | −8.0% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in PRME
All superinvestors →
Who owns PRME
share of fund held shares- Index and passive funds26.9%
- Active managers and hedge funds60.3%
- Banks and brokers12.6%
- Pensions, insurers and other0.3%
The top 10 holders own 61.3% of all PRME shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
35 funds changed their position- Sumitomo Mitsui Trust Group, Inc.Added+499K sh
- Alessandra Capital Management, LLCAdded+134K sh
- Pekin Hardy Strauss, Inc.New+115K sh
- Commonwealth Equity Services, LLCAdded+54K sh
- Oppenheimer & Co IncAdded+50K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Alphabet Inc. | 9.13% | 16.6M | $61.1M | 0 |
| 2 | BlackRock, Inc. | 5.29% | 9.6M | $35.4M | +1.1M |
| 3 | ARK Investment Management LLC | 4.60% | 8.3M | $30.8M | +2.1M |
| 4 | State Street Corp | 4.18% | 7.6M | $28M | +1.2M |
| 5 | T. Rowe Price Investment Management, Inc. | 2.89% | 5.2M | $19.3M | −245K |
| 6 | Vanguard Capital Management LLC | 2.49% | 4.5M | $16.7M | +48K |
| 7 | Balyasny Asset Management L.P. | 2.19% | 4M | $14.6M | −154K |
| 8 | Goldman Sachs Group Inc | 1.89% | 3.4M | $12.7M | +2.5M |
| 9 | Casdin Capital, LLC | 1.75% | 3.2M | $11.7M | 0 |
| 10 | Woodline Partners LP | 1.66% | 3M | $11.1M | +591 |
- Goldman Sachs Group Inc+2.5M sh+$9.1M
- ARK Investment Management LLC+2.1M sh+$7.8M
- Citadel Advisors LLC+1.7M sh+$6.3M
- Jump Financial, LLC+1.2M sh+$4.6M
- State Street Corp+1.2M sh+$4.5M
- BlackRock, Inc.+1.1M sh+$4.1M
- Point72 Asset Management, L.P.+534K sh+$2M
- Millennium Management LLC+427K sh+$1.6M
- D. E. Shaw & Co., Inc.−745K sh−$2.7M
- Renaissance Technologies LLC−624K sh−$2.3M
- Amova Asset Management Americas, Inc.−534K sh−$2M
- Sumitomo Mitsui Trust Group, Inc.−528K sh−$1.9M
- Hrt Financial LP−451K sh−$1.7M
- AQR Capital Management LLC−437K sh−$1.6M
- T. Rowe Price Investment Management, Inc.−245K sh−$902K
- Bollard Group LLC−210K sh−$775K
PRME institutional ownership FAQ
Who owns the most PRME stock?
In Q2 2026 13F filings the largest holder of PRME was Alphabet Inc., followed by BlackRock, Inc. and ARK Investment Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of PRME is owned by institutions?
Funds that file 13F reports held 58.8% of PRME's shares at Jun 30, 2026, compared with 54.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying PRME?
In Q2 2026, 83 funds bought PRME (22 of them new positions) and 90 sold (23 sold out completely). Among well known investors, 4 added and 1 cut. Our fund sentiment for PRME is neutral.
What is PRME's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this PRME ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.