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Ameritas Investment Partners’s Upstream Bio Inc UPB Stock Holding History

Ameritas Investment Partners’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 		$19K Hold
2,741
– – ﹤0.01% 2785
2026
Q1 		$24.7K Hold
2,741
– – ﹤0.01% 2503
2025
Q4 		$74.4K Hold
2,741
– – ﹤0.01% 1872
2025
Q3 		$51.6K Sell
2,741
-817
-23% -$12.7K ﹤0.01% 2097
2025
Q2 		$39.1K Buy
3,558
+1,736
+95% +$16K ﹤0.01% 2344
2025
Q1 		$11.2K Hold
1,822
– – ﹤0.01% 2787
2024
Q4 		$30K Buy
+1,822
New +$40.7K ﹤0.01% 2461

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

Ameritas Investment Partners's UPB Position: Q2 2026 in Review

Ameritas Investment Partners held its Upstream Bio Inc (UPB) position steady in Q2 2026 at 2,741 shares worth $19K. The position accounts for ﹤0.01% of the portfolio, ranked #2785.

Ameritas Investment Partners first reported a position in UPB in Q4 2024 and has held it in 7 quarters since. The position peaked at $74.4K in Q4 2025. 148 funds tracked by Wall St. Rank hold UPB as of Q2 2026.

  • Ameritas Investment Partners held 2,741 shares of Upstream Bio Inc worth $19K as of Q2 2026.
  • Ameritas Investment Partners left its Upstream Bio Inc share count unchanged in Q2 2026.
  • Upstream Bio Inc made up ﹤0.01% of Ameritas Investment Partners's portfolio in Q2 2026, its #2785 holding.
  • Ameritas Investment Partners first reported a position in Upstream Bio Inc in Q4 2024 and has held it in 7 quarters since.
  • Ameritas Investment Partners's Upstream Bio Inc position peaked at $74.4K in Q4 2025.
  • 148 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q2 2026.

Based on Ameritas Investment Partners's 13F filing for Q2 2026, filed 13 Aug 2026.