JY
JBIO

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 		$1.52M Buy
68,300
+10,700
+19% +$223K ﹤0.01% 7138
2026
Q1 		$809K Sell
57,600
-16,800
-23% -$243K ﹤0.01% 8448
2025
Q4 		$1.15M Buy
74,400
+17,100
+30% +$201K ﹤0.01% 6876
2025
Q3 		$494K Sell
57,300
-1,000
-2% -$8.17K ﹤0.01% 8976
2025
Q2 		$582K Buy
58,300
+56,777
+3,728% +$1.93M ﹤0.01% 8818
2025
Q1 		$134K Buy
1,523
+17
+1% +$1.49K ﹤0.01% 11310
2024
Q4 		$140K Buy
1,506
+772
+105% +$66.5K ﹤0.01% 11075
2024
Q3 		$53.7K Sell
734
-469
-39% -$30.3K ﹤0.01% 11357
2024
Q2 		$69.9K Buy
+1,203
New +$798K ﹤0.01% 11246

Other funds holding JBIO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JT
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
VA
VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return
BG
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
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
State Street
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.