Jade Biosciences Ownership | Who Owns Jade Biosciences?

Jade Biosciences Ownership Summary

Jade Biosciences is owned by 126.30% institutional investors, 0.79% insiders. Fmr is the largest institutional shareholder, holding 15.80% of JBIO shares. Franklin US Small Cap Value Equity is the top mutual fund, with 3.65% of its assets in Jade Biosciences shares.

JBIO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Jade Biosciences	126.30%	0.79%	-27.10%
Sector	Healthcare Stocks	245.07%	12.10%	-157.17%
Industry	Biotech Stocks	380.48%	11.73%	-292.21%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Fmr	9.13M	15.80%	$202.80M
Janus henderson group	3.11M	9.90%	$43.56M
Fairmount funds management	4.55M	7.88%	$101.18M
Ra capital management	3.67M	6.35%	$81.57M
Vr adviser	3.22M	5.57%	$71.56M
Vanguard group	2.10M	5.29%	$32.34M
Bellevue group	3.06M	5.29%	$67.95M
Paradigm biocapital advisors lp	2.86M	4.95%	$63.49M
Blackrock funding, inc. /de	2.80M	4.85%	$62.25M
Franklin resources	2.79M	4.83%	$62.04M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Versant venture management	991.78K	13.55%	$22.04M
Fairmount funds management	4.55M	6.69%	$101.18M
Avidity partners management lp	1.70M	6.05%	$37.79M
Acorn capital advisors	986.76K	5.98%	$21.93M
Foresite capital management vi	886.67K	3.07%	$19.70M
Vr adviser	3.22M	2.17%	$71.56M
Bellevue group	3.06M	1.43%	$67.95M
Samsara biocapital	736.24K	1.34%	$16.36M
Verdad advisers, lp	56.38K	1.20%	$1.25M
Paradigm biocapital advisors lp	2.86M	1.19%	$63.49M

Top Buyers

Holder	Shares	% Assets	Change
Janus henderson group	3.11M	0.02%	3.11M
Paradigm biocapital advisors lp	2.86M	1.19%	2.86M
Franklin resources	2.79M	0.01%	2.79M
Fmr	9.13M	0.01%	2.04M
Adage capital partners gp	1.91M	0.06%	1.91M

Top Sellers

Holder	Shares	% Assets	Change
Deep track capital, lp	-	-	-2.28M
Frazier life sciences management	-	-	-1.41M
Great point partners	-	-	-964.46K
Driehaus capital management	-	-	-635.50K
Rtw investments, lp	-	-	-573.21K

New Positions

Holder	Shares	% Assets	Change	Value
Janus henderson group	3.11M	0.02%	3.11M	$43.56M
Paradigm biocapital advisors lp	2.86M	1.19%	2.86M	$63.49M
Franklin resources	2.79M	0.01%	2.79M	$62.04M
Adage capital partners gp	1.91M	0.06%	1.91M	$42.46M
Polar capital	1.85M	0.10%	1.85M	$41.04M

Sold Out

Holder	Change
Root financial partners	-1.00
Principal securities	-5.00
Mai capital management	-6.00
Glenmede investment management, lp	-53.00
Simplex trading	-83.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	157	27.64%	72,973,653	46.40%	126	1.70%	115	74.24%	24	-31.43%
Mar 31, 2026	62	-41.51%	12,616,762	-73.20%	40	0.28%	32	-59.49%	21	61.54%
Dec 31, 2025	75	-1.32%	20,804,363	-34.20%	52	0.82%	55	77.42%	10	-54.55%
Sep 30, 2025	29	-59.15%	6,448,004	-79.55%	22	0.18%	9	-87.14%	14	-
Jun 30, 2025	32	-	6,707,208	-	134,144	-	32	-	-	-

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Franklin US Small Cap Value Equity	2.32M	3.65%	1.83M
Vanguard Morn Total Stk Mkt Idx Investor	1.70M	2.79%	284.01K
Vanguard Total Stock Mkt Idx Inv	1.70M	2.79%	284.01K
State Street® SPDR® S&P® Biotech ETF	1.76M	2.77%	19.80K
Polar Capital Biotech S Inc	1.75M	2.75%	-
Vanguard MStar Total Stk Mkt Idx Invest	1.70M	2.67%	-
Fidelity Growth Compy Commingled Pl S	1.63M	2.67%	242.10K
Franklin Small Cap Value A	1.63M	2.56%	215.98K
Fidelity Growth Company Fund	1.19M	1.87%	-
iShares Russell 2000 ETF	1.04M	1.64%	8.93K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 16, 2025	Frohlich Tom	Chief Executive Officer	Buy	$44.40K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	-
2025 Q4	-	-
2025 Q3	-	-
2025 Q2	1	-

JBIO Ownership FAQ

Who Owns Jade Biosciences?

Jade Biosciences shareholders are primarily institutional investors at 126.30%, followed by 0.79% insiders and -27.09% retail investors. The average institutional ownership in Jade Biosciences's industry, Biotech Stocks , is 380.48%, which Jade Biosciences falls below.

Who owns the most shares of Jade Biosciences?

Jade Biosciences’s largest shareholders are Fmr (9.13M shares, 15.80%), Janus henderson group (3.11M shares, 9.90%), and Fairmount funds management (4.55M shares, 7.88%). Together, they hold 33.58% of Jade Biosciences’s total shares outstanding.

Does Blackrock own Jade Biosciences?

BlackRock is not among the top 10 institutional shareholders of Jade Biosciences.

Who is Jade Biosciences’s biggest shareholder by percentage of total assets invested?

Versant venture management is Jade Biosciences’s biggest shareholder by percentage of total assets invested, with 13.55% of its assets in 991.78K Jade Biosciences shares, valued at 22.04M$.

Who is the top mutual fund holder of Jade Biosciences shares?

Franklin US Small Cap Value Equity is the top mutual fund holder of Jade Biosciences shares, with 3.65% of its total shares outstanding invested in 2.32M Jade Biosciences shares.

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