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Fox Run Management’s Upstream Bio Inc UPB Stock Holding History

Fox Run 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
Q3 		$366K Buy
+69,504
New +$455K 0.04% 690

Other funds holding UPB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Decheng Capital
Decheng Capital Menlo Park, California $685M AUM 129.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $123B AUM 30.05% 1-Year Est. Return
SEB Asset Management
SEB Asset Management Stockholm $27B AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

Fox Run Management's UPB Position: Q3 2026 in Review

Fox Run Management opened a new position in Upstream Bio Inc (UPB) in Q3 2026: 69,504 shares worth $366K. The stake represents 0.04% of the portfolio and ranks #690 among its holdings.

87 funds tracked by Wall St. Rank hold UPB as of Q3 2026.

  • Fox Run Management held 69,504 shares of Upstream Bio Inc worth $366K as of Q3 2026.
  • Upstream Bio Inc was a new Fox Run Management position in Q3 2026.
  • Upstream Bio Inc made up 0.04% of Fox Run Management's portfolio in Q3 2026, its #690 holding.
  • 87 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q3 2026.

Based on Fox Run Management's 13F filing for Q3 2026, filed 12 Nov 2026.