Ohio Public Employees Retirement System (OPERS)’s Upstream Bio Inc UPB Stock Holding History

Ohio Public Employees Retirement System (OPERS)’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	$32.5K	Buy	+4,700	New	+$39.4K	﹤0.01%	2101

Other funds holding UPB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Decheng Capital Menlo Park, California $732M AUM 275.56% 1-Year Est. Return

Enavate Sciences Menlo Park, California $345M AUM 134.64% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Ohio Public Employees Retirement System (OPERS)'s UPB Position: Q2 2026 in Review

Ohio Public Employees Retirement System (OPERS) opened a new position in Upstream Bio Inc (UPB) in Q2 2026: 4,700 shares worth $32.5K. The stake represents ﹤0.01% of the portfolio and ranks #2101 among its holdings.

150 funds tracked by Wall St. Rank hold UPB as of Q2 2026.

Ohio Public Employees Retirement System (OPERS) held 4,700 shares of Upstream Bio Inc worth $32.5K as of Q2 2026.
Upstream Bio Inc was a new Ohio Public Employees Retirement System (OPERS) position in Q2 2026.
Upstream Bio Inc made up ﹤0.01% of Ohio Public Employees Retirement System (OPERS)'s portfolio in Q2 2026, its #2101 holding.
150 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q2 2026.

Based on Ohio Public Employees Retirement System (OPERS)'s 13F filing for Q2 2026, filed 17 Aug 2026.