Jeff Yass’s Jade Biosciences JBIO Stock Holding History

Jeff Yass’s Portfolio JBIO Stock Details JBIO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$292K	Sell	13,143 -5,165	-28%	-$108K	﹤0.01%	11102
2026 Q1	$257K	Buy	+18,308	New	+$265K	﹤0.01%	11207
2025 Q4	–	Sell	-17,653	Closed	-$207K	–	12320
2025 Q3	$152K	Sell	17,653 -21,576	-55%	-$176K	﹤0.01%	11265
2025 Q2	$392K	Buy	39,229 +38,122	+3,444%	+$1.3M	﹤0.01%	9739
2025 Q1	$97.3K	Sell	1,107 -543	-33%	-$47.7K	﹤0.01%	11558
2024 Q4	$153K	Buy	+1,650	New	+$142K	﹤0.01%	11003
2024 Q3	–	Sell	-2,039	Closed	-$132K	–	11943
2024 Q2	$118K	Buy	+2,039	New	+$1.35M	﹤0.01%	10896
2022 Q1	–	Sell	-451	Closed	-$186K	–	12949
2021 Q4	$186K	Buy	+451	New	+$228K	﹤0.01%	11526

Other funds holding JBIO

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Jupiter Topco New York $245B AUM

FFM

Fairmount Funds Management West Conshohocken, Pennsylvania $1.51B AUM 546.08% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return

Bellevue Group Kuesnacht, Switzerland $4.75B AUM 68.58% 1-Year Est. Return

PBA

Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jeff Yass's JBIO Position: Q2 2026 in Review

Jeff Yass reduced its Jade Biosciences (JBIO) stake by 28% in Q2 2026, selling an estimated $108K and leaving 13,143 shares worth $292K. The position accounts for ﹤0.01% of the portfolio, ranked #11102.

Jeff Yass first reported a position in JBIO in Q4 2021 and has held it in 8 quarters since. The position peaked at $392K in Q2 2025. 153 funds tracked by Wall St. Rank hold JBIO as of Q2 2026.

Jeff Yass held 13,143 shares of Jade Biosciences worth $292K as of Q2 2026.
Jeff Yass sold 5,165 Jade Biosciences shares in Q2 2026, an estimated $108K.
Jade Biosciences made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11102 holding.
Jeff Yass first reported a position in Jade Biosciences in Q4 2021 and has held it in 8 quarters since.
Jeff Yass's Jade Biosciences position peaked at $392K in Q2 2025.
153 funds tracked by Wall St. Rank held Jade Biosciences as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.