JBIO Institutional Ownership
Who owns Jade Biosciences, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 154 funds reported holding JBIO at Jun 30, 2026, together owning 114.6% of the company.
- ▲111 buying vs 42 selling
- ▲Held by funds +33.8 pts
- ▲Funds holding +34
- ●Superinvestors: 2 added, 2 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
5 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 154 | 120 | +28.3% |
| In funds' top 10 | 7 | 6 | +16.7% |
| 13F shares | 72.9M | 51.4M | +41.8% |
| Held by funds | 114.6% | 80.8% | +33.8 pts |
| New positions | 51 | 24 | +112.5% |
| Increased | 60 | 39 | +53.8% |
| Reduced | 26 | 33 | −21.2% |
| Sold out | 16 | 13 | +23.1% |
| Calls (shares) | 0 | 11K | −100.0% |
| Puts (shares) | 1,134 | 12K | −90.8% |
| Put/call ratio | – | 1.02 | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in JBIO
All superinvestors →
Who owns JBIO
share of fund held shares- Index and passive funds13.2%
- Active managers and hedge funds81.5%
- Banks and brokers5.1%
- Pensions, insurers and other0.2%
The top 10 holders own 55.8% of all JBIO shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
23 funds changed their position- Principal Financial Group IncNew+89K sh
- Deltec Asset Management LLCSold out−9,436 sh
- Arizona State Retirement SystemNew+12K sh
- Strs OhioSold out−3,300 sh
- Profund Advisors LLCAdded+4,596 sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Fmr LLC | 14.35% | 9.1M | $203M | +2M |
| 2 | Jupiter Topco LLC | 9.86% | 6.3M | $139M | – |
| 3 | Fairmount Funds Management LLC | 7.16% | 4.6M | $101M | 0 |
| 4 | RA Capital Management, L.P. | 5.77% | 3.7M | $81.6M | 0 |
| 5 | Venrock Adviser, LLC | 5.06% | 3.2M | $71.6M | 0 |
| 6 | Bellevue Group AG | 4.81% | 3.1M | $67.9M | −444K |
| 7 | Paradigm Biocapital Advisors LP | 4.49% | 2.9M | $63.5M | +2.9M |
| 8 | BlackRock, Inc. | 4.40% | 2.8M | $62.2M | +488K |
| 9 | Franklin Resources Inc | 4.39% | 2.8M | $62M | +2.8M |
| 10 | State Street Corp | 3.67% | 2.3M | $51.9M | +1.7M |
- Paradigm Biocapital Advisors LP+2.9M sh+$63.5M
- Franklin Resources Inc+2.8M sh+$62M
- Fmr LLC+2M sh+$45.4M
- Adage Capital Partners Gp, L.l.c.+1.9M sh+$42.5M
- Polar Capital Holdings Plc+1.8M sh+$41M
- State Street Corp+1.7M sh+$37.3M
- Jpmorgan Chase & Co+1.5M sh+$32.3M
- Citadel Advisors LLC+792K sh+$17.6M
- Avidity Partners Management LP−1.1M sh−$24.5M
- Great Point Partners LLC−964K sh−$13.6M
- Versant Venture Management, LLC−534K sh−$11.9M
- Bellevue Group AG−444K sh−$9.9M
- Baker Bros. Advisors LP−411K sh−$9.1M
- Driehaus Capital Management LLC−635K sh−$8.9M
- Rtw Investments, LP−573K sh−$8.1M
- Marshall Wace, LLP−359K sh−$8M
JBIO institutional ownership FAQ
Who owns the most JBIO stock?
In Q2 2026 13F filings the largest holder of JBIO was Fmr LLC, followed by Jupiter Topco LLC and Fairmount Funds Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of JBIO is owned by institutions?
Funds that file 13F reports held 114.6% of JBIO's shares at Jun 30, 2026, compared with 80.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying JBIO?
In Q2 2026, 111 funds bought JBIO (51 of them new positions) and 42 sold (16 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for JBIO is bullish.
What is JBIO's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this JBIO 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.