Verition Fund Management
UPB

Verition Fund Management’s Upstream Bio Inc UPB Stock Holding History

Verition Fund 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 		– Sell
-12,020
Closed -$326K – 3738
2025
Q4 		$326K Sell
12,020
-34,981
-74% -$871K ﹤0.01% 2954
2025
Q3 		$884K Buy
47,001
+13,496
+40% +$210K ﹤0.01% 2621
2025
Q2 		$368K Buy
+33,505
New +$309K ﹤0.01% 3102
2025
Q1 		– Sell
-37,379
Closed -$615K – 3784
2024
Q4 		$615K Buy
+37,379
New +$835K ﹤0.01% 2352

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

Verition Fund Management's UPB Position: Q1 2026 in Review

Verition Fund Management sold out of Upstream Bio Inc (UPB) in Q1 2026, closing a stake of 12,020 shares — an estimated $326K sold.

Verition Fund Management first reported a position in UPB in Q4 2024 and held it in 4 quarters. The position peaked at $884K in Q3 2025. 140 funds tracked by Wall St. Rank hold UPB as of Q1 2026.

  • Verition Fund Management reported no remaining Upstream Bio Inc position as of Q1 2026 after selling out during the quarter.
  • Verition Fund Management sold 12,020 Upstream Bio Inc shares in Q1 2026, an estimated $326K.
  • Verition Fund Management first reported a position in Upstream Bio Inc in Q4 2024 and held it in 4 quarters.
  • Verition Fund Management's Upstream Bio Inc position peaked at $884K in Q3 2025.
  • 140 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q1 2026.

Based on Verition Fund Management's 13F filing for Q1 2026, filed 15 May 2026.