Jade Biosciences
JBIO · NASDAQ
$14.86+$1.03 (+7.45%)TodayMarket closed ·
Prev close $13.83
Who owns JBIO
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 65.5% of JBIO’s shares.
- Fidelity Management & Research Company LLC14.6%
- Janus Henderson Investors10.3%
- Fairmount Funds Management LLC7.5%
- RA Capital Management, LP6.0%
- Next 6 largest institutions27.1%
- All other shareholders34.5%
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Management & Research Company LLC | 8.87M | 14.57% |
| Janus Henderson Investors | 6.27M | 10.31% |
| Fairmount Funds Management LLC | 4.55M | 7.48% |
| RA Capital Management, LP | 3.67M | 6.03% |
| VR Adviser, LLC | 3.22M | 5.29% |
| Paradigm BioCapital Advisors LP | 3.11M | 5.11% |
| Bellevue Asset Management AG | 3.06M | 5.03% |
| BlackRock Institutional Trust Company, N.A. | 2.55M | 4.19% |
| State Street Investment Management (US) | 2.34M | 3.84% |
| Vanguard Capital Management, LLC | 2.24M | 3.69% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Polar Capital Biotechnology Fund | 1.75M | 2.87% |
| Vanguard Total Stock Market Index Fund | 1.70M | 2.79% |
| State Street SPDR S&P Biotech ETF | 1.62M | 2.66% |
| Franklin Small Cap Value Fund | 1.41M | 2.32% |
| Fidelity Growth Company Fund | 1.19M | 1.96% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of JBIO in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Eisner Mark | Award | 47.67K | — |
| CAIN CHRISTOPHER W. | Award | 34.84K | — |
| Klein Lawrence Otto | Award | 34.84K | — |
| Lavelle Erin | Award | 34.84K | — |
| Harwin Peter Evan | Award | 34.84K | — |
| DOBMEIER ERIC | Award | 34.84K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 12.12M
- Days to cover
- 11.33
- % of shares outstanding
- 19.92%
- Average daily volume
- 1.07M
- Change since last report
- +10.3%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.