Jim Simons
JBIO

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
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
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.38B AUM 407.79% 1-Year Est. Return
APM
Avidity Partners Management Dallas, Texas $936M AUM 195% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BG
Bellevue Group Kuesnacht, Switzerland $4.2B AUM 54.85% 1-Year Est. Return
VA
VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Jim Simons's JBIO Position: Q1 2026 in Review

Jim Simons increased its Jade Biosciences (JBIO) stake by 94% in Q1 2026, buying an estimated $948K and bringing the position to 135,039 shares worth $1.9M. The position accounts for ﹤0.01% of the portfolio, ranked #1925.

Jim Simons first reported a position in JBIO in Q4 2022 and has held it in 8 quarters since. 120 funds tracked by Wall St. Rank hold JBIO as of Q1 2026.

  • Jim Simons held 135,039 shares of Jade Biosciences worth $1.9M as of Q1 2026.
  • Jim Simons bought 65,438 Jade Biosciences shares in Q1 2026, an estimated $948K.
  • Jade Biosciences made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #1925 holding.
  • Jim Simons first reported a position in Jade Biosciences in Q4 2022 and has held it in 8 quarters since.
  • 120 funds tracked by Wall St. Rank held Jade Biosciences as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.