RI
JBIO

RTW Investments’s Jade Biosciences JBIO Stock Holding History

RTW Investments’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 		$8.05M Sell
573,205
-876,068
-60% -$12.7M 0.08% 71
2025
Q4 		$22.4M Hold
1,449,273
– – 0.22% 58
2025
Q3 		$12.5M Hold
1,449,273
– – 0.15% 60
2025
Q2 		$14.5M Buy
+1,449,273
New +$49.3M 0.21% 55

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 $5.72T AUM 30.48% 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

RTW Investments's JBIO Position: Q1 2026 in Review

RTW Investments reduced its Jade Biosciences (JBIO) stake by 60% in Q1 2026, selling an estimated $12.7M and leaving 573,205 shares worth $8.05M. The position accounts for 0.08% of the portfolio, ranked #71.

RTW Investments first reported a position in JBIO in Q2 2025 and has held it in 4 quarters since. The position peaked at $22.4M in Q4 2025. 120 funds tracked by Wall St. Rank hold JBIO as of Q1 2026.

  • RTW Investments held 573,205 shares of Jade Biosciences worth $8.05M as of Q1 2026.
  • RTW Investments sold 876,068 Jade Biosciences shares in Q1 2026, an estimated $12.7M.
  • Jade Biosciences made up 0.08% of RTW Investments's portfolio in Q1 2026, its #71 holding.
  • RTW Investments first reported a position in Jade Biosciences in Q2 2025 and has held it in 4 quarters since.
  • RTW Investments's Jade Biosciences position peaked at $22.4M in Q4 2025.
  • 120 funds tracked by Wall St. Rank held Jade Biosciences as of Q1 2026.

Based on RTW Investments's 13F filing for Q1 2026, filed 15 May 2026.