Jim Simons’s Jade Biosciences JBIO Stock Holding History

Jim Simons’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	$1.64M	Sell	73,591 -61,448	-46%	-$1.28M	﹤0.01%	2078
2026 Q1	$1.9M	Buy	135,039 +65,438	+94%	+$948K	﹤0.01%	1925
2025 Q4	$1.07M	Buy	+69,601	New	+$816K	﹤0.01%	2233
2025 Q2	–	Sell	-1,543	Closed	-$136K	–	3547
2025 Q1	$136K	Buy	1,543 +269	+21%	+$23.6K	﹤0.01%	3147
2024 Q4	$118K	Buy	1,274 +763	+149%	+$65.8K	﹤0.01%	3264
2024 Q3	$37.4K	Buy	+511	New	+$33K	﹤0.01%	3377
2024 Q2	–	Sell	-214	Closed	-$222K	–	3487
2024 Q1	$222K	Buy	+214	New	+$163K	﹤0.01%	3191
2023 Q2	–	Sell	-503	Closed	-$355K	–	3905
2023 Q1	$355K	Sell	503 -14	-3%	-$11.6K	﹤0.01%	3046
2022 Q4	$530K	Buy	+517	New	+$375K	﹤0.01%	2927

Other funds holding JBIO

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

Jupiter Topco New York $245B AUM

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

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

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 $3.38T AUM 44.17% 1-Year Est. Return

Jim Simons's JBIO Position: Q2 2026 in Review

Jim Simons reduced its Jade Biosciences (JBIO) stake by 46% in Q2 2026, selling an estimated $1.28M and leaving 73,591 shares worth $1.64M. The position accounts for ﹤0.01% of the portfolio, ranked #2078.

Jim Simons first reported a position in JBIO in Q4 2022 and has held it in 9 quarters since. The position peaked at $1.9M in Q1 2026. 153 funds tracked by Wall St. Rank hold JBIO as of Q2 2026.

Jim Simons held 73,591 shares of Jade Biosciences worth $1.64M as of Q2 2026.
Jim Simons sold 61,448 Jade Biosciences shares in Q2 2026, an estimated $1.28M.
Jade Biosciences made up ﹤0.01% of Jim Simons's portfolio in Q2 2026, its #2078 holding.
Jim Simons first reported a position in Jade Biosciences in Q4 2022 and has held it in 9 quarters since.
Jim Simons's Jade Biosciences position peaked at $1.9M in Q1 2026.
153 funds tracked by Wall St. Rank held Jade Biosciences as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.