DnB Asset Management
UPB

DnB Asset Management’s Upstream Bio Inc UPB Stock Holding History

DnB Asset 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 		$163K Buy
23,600
+85
+0.4% +$712 ﹤0.01% 1245
2026
Q1 		$212K Buy
23,515
+10,722
+84% +$193K ﹤0.01% 1140
2025
Q4 		$347K Buy
+12,793
New +$318K ﹤0.01% 694

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

DnB Asset Management's UPB Position: Q2 2026 in Review

DnB Asset Management increased its Upstream Bio Inc (UPB) stake by 0.36% in Q2 2026, buying an estimated $712 and bringing the position to 23,600 shares worth $163K. The position accounts for ﹤0.01% of the portfolio, ranked #1245.

DnB Asset Management first reported a position in UPB in Q4 2025 and has held it in 3 quarters since. The position peaked at $347K in Q4 2025. 149 funds tracked by Wall St. Rank hold UPB as of Q2 2026.

  • DnB Asset Management held 23,600 shares of Upstream Bio Inc worth $163K as of Q2 2026.
  • DnB Asset Management bought 85 Upstream Bio Inc shares in Q2 2026, an estimated $712.
  • Upstream Bio Inc made up ﹤0.01% of DnB Asset Management's portfolio in Q2 2026, its #1245 holding.
  • DnB Asset Management first reported a position in Upstream Bio Inc in Q4 2025 and has held it in 3 quarters since.
  • DnB Asset Management's Upstream Bio Inc position peaked at $347K in Q4 2025.
  • 149 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q2 2026.

Based on DnB Asset Management's 13F filing for Q2 2026, filed 11 Aug 2026.