SG Americas Securities
UPB

SG Americas Securities’s Upstream Bio Inc UPB Stock Holding History

SG Americas Securities’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 		– Sell
-5,518
Closed -$150K – 3801
2025
Q4 		$150K Buy
+5,518
New +$137K ﹤0.01% 3045
2025
Q1 		– Sell
-7,590
Closed -$125K – 3827
2024
Q4 		$125K Buy
+7,590
New +$169K ﹤0.01% 2567

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

SG Americas Securities's UPB Position: Q1 2026 in Review

SG Americas Securities sold out of Upstream Bio Inc (UPB) in Q1 2026, closing a stake of 5,518 shares — an estimated $150K sold.

SG Americas Securities first reported a position in UPB in Q4 2024 and held it in 2 quarters. The position peaked at $150K in Q4 2025. 140 funds tracked by Wall St. Rank hold UPB as of Q1 2026.

  • SG Americas Securities reported no remaining Upstream Bio Inc position as of Q1 2026 after selling out during the quarter.
  • SG Americas Securities sold 5,518 Upstream Bio Inc shares in Q1 2026, an estimated $150K.
  • SG Americas Securities first reported a position in Upstream Bio Inc in Q4 2024 and held it in 2 quarters.
  • SG Americas Securities's Upstream Bio Inc position peaked at $150K in Q4 2025.
  • 140 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q1 2026.

Based on SG Americas Securities's 13F filing for Q1 2026, filed 16 Apr 2026.