Jade Biosciences Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:JBIO Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
06 Oct 25	BuyUS$12,184,772	Fairmount Funds Management LLC	Company		1,333,126	US$9.14
16 May 25	BuyUS$44,400	Tom Frohlich	Individual		6,000	US$7.40

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of JBIO?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	438,481	0.787%
Hedge Funds	4,553,494	8.17%
Private Companies	5,000,000	8.97%
VC/PE Firms	6,891,447	12.4%
Institutions	38,827,511	69.7%

Dilution of Shares: JBIO only recently listed within the past 12 months

Top Shareholders

Top 25 shareholders own 103% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
14%	FMR LLC	6,894,488	US$150.9m	41%	0.01%
10.1%	Paragon Therapeutics, Inc.	5,000,000	US$109.4m	0%	no data
9.23%	Fairmount Funds Management LLC	4,553,494	US$99.6m	41.4%	3.78%
7.44%	RA Capital Management, L.P.	3,671,083	US$80.3m	246%	0.72%
6.77%	Bellevue Asset Management AG	3,341,103	US$73.1m	0%	1.01%
6.53%	VR Management, LLC	3,220,364	US$70.5m	0%	1.82%
6.21%	Janus Henderson Group plc	3,063,457	US$67.0m	0%	0.02%
5.82%	BlackRock, Inc.	2,870,313	US$62.8m	33.5%	no data
4.25%	The Vanguard Group, Inc.	2,095,767	US$45.9m	21.4%	no data
3.33%	Baker Bros. Advisors LP	1,641,137	US$35.9m	0%	0.16%
3.2%	Remedium Capital Partners, Llc	1,577,750	US$34.5m	0%	10.3%
3.09%	Versant Venture Management, LLC	1,525,820	US$33.4m	0%	16.22%
2.94%	RTW Investments, LP	1,449,273	US$31.7m	0%	0.28%
2.84%	Avidity Partners Management, L.P.	1,400,708	US$30.6m	24.3%	4.9%
1.96%	Samsara BioCapital LLC	968,798	US$21.2m	82.4%	1.68%
1.8%	Driehaus Capital Management LLC	887,179	US$19.4m	-29.4%	0.08%
1.77%	Marshall Wace LLP	875,273	US$19.2m	2,200%	0.02%
1.76%	Aberdeen Group Plc	867,284	US$19.0m	0%	0.01%
1.71%	Geode Capital Management, LLC	841,808	US$18.4m	26.4%	no data
1.63%	Great Point Partners, LLC	806,273	US$17.6m	27.5%	3.98%
1.62%	Soleus Capital Management, L.P.	796,744	US$17.4m	0%	0.59%
1.45%	Affinity Asset Advisors, LLC	714,956	US$15.6m	995%	0.89%
1.3%	State Street Global Advisors, Inc.	642,921	US$14.1m	28.8%	no data
1.13%	Point72 Asset Management, L.P.	558,474	US$12.2m	0%	0.02%
1.08%	OrbiMed Advisors LLC	531,163	US$11.6m	0%	0.14%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/04/17 21:43
End of Day Share Price	2026/04/17 00:00
Earnings	2025/12/31
Annual Earnings	2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Jade Biosciences, Inc. is covered by 8 analysts. 8 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Julian Harrison	BTIG
Vamil Divan	Guggenheim Securities, LLC
Yu He	H.C. Wainwright & Co.