VCM
UPB

Voleon Capital Management’s Upstream Bio Inc UPB Stock Holding History

Voleon Capital Management’s Portfolio UPB Stock Details UPB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.97M Buy
+285,234
New +$2.39M 0.04% 348

Other funds holding UPB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DC
Decheng Capital Menlo Park, California $732M AUM 275.56% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $345M AUM 134.64% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Voleon Capital Management's UPB Position: Q2 2026 in Review

Voleon Capital Management opened a new position in Upstream Bio Inc (UPB) in Q2 2026: 285,234 shares worth $1.97M. The stake represents 0.04% of the portfolio and ranks #348 among its holdings.

150 funds tracked by Wall St. Rank hold UPB as of Q2 2026.

  • Voleon Capital Management held 285,234 shares of Upstream Bio Inc worth $1.97M as of Q2 2026.
  • Upstream Bio Inc was a new Voleon Capital Management position in Q2 2026.
  • Upstream Bio Inc made up 0.04% of Voleon Capital Management's portfolio in Q2 2026, its #348 holding.
  • 150 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q2 2026.

Based on Voleon Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.