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
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 $1.9T AUM 41.92% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DC
Decheng Capital Menlo Park, California $661M AUM 299.97% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
YIH
Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

DnB Asset Management's UPB Position: Q1 2026 in Review

DnB Asset Management increased its Upstream Bio Inc (UPB) stake by 84% in Q1 2026, buying an estimated $193K and bringing the position to 23,515 shares worth $212K. The position accounts for ﹤0.01% of the portfolio, ranked #1140.

DnB Asset Management first reported a position in UPB in Q4 2025 and has held it in 2 quarters since. The position peaked at $347K in Q4 2025. 140 funds tracked by Wall St. Rank hold UPB as of Q1 2026.

  • DnB Asset Management held 23,515 shares of Upstream Bio Inc worth $212K as of Q1 2026.
  • DnB Asset Management bought 10,722 Upstream Bio Inc shares in Q1 2026, an estimated $193K.
  • Upstream Bio Inc made up ﹤0.01% of DnB Asset Management's portfolio in Q1 2026, its #1140 holding.
  • DnB Asset Management first reported a position in Upstream Bio Inc in Q4 2025 and has held it in 2 quarters since.
  • DnB Asset Management's Upstream Bio Inc position peaked at $347K in Q4 2025.
  • 140 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q1 2026.

Based on DnB Asset Management's 13F filing for Q1 2026, filed 14 May 2026.