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Upstream Bio shares owned by GSA Capital Partners

Quarter-by-quarter ownership of Upstream Bio (UPB) shares owned by GSA Capital Partners from 13F filings

Historical chart of GSA Capital Partners investment in Upstream Bio

Tip: Access up to 7 years of quarterly data

All positions including Upstream Bio held by GSA Capital Partners consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Upstream Bio by GSA Capital Partners

Quarter filed Position value Share count Share price at filing
2026-03-31 $353k 39k 9.00

More positions owned by GSA Capital Partners

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Vanguard Scottsdale Fds Int-term Corp (VCIT)
Ishares Tr Iboxx Inv Cp Etf (LQD)
Ishares Tr Iboxx Hi Yd Etf (HYG)
Ishares Tr Ishs 1-5yr Invs (IGSB)
Spdr Series Trust State Street Spd (JNK)
Spdr Series Trust State Street Spd (SPSB)
Ishares Tr Fltg Rate Nt Etf (FLOT)
Bank Ozk (OZK)
Star Bulk Carriers Corp. Shs Par (SBLK)
Spdr Series Trust State Street Spd (SPIB)
Ameriprise Financial (AMP)
Synchrony Financial (SYF)
Alphabet Cap Stk Cl A (GOOGL)
Frontline (FRO)

View all positions for GSA Capital Partners

Top funds holding Upstream Bio

FMR
OrbiMed Advisors
BlackRock
Decheng Capital
Enavate Sciences GP
Vanguard Group
Vanguard Capital Management
Omega Fund Management
State Street Corporation
Y-Intercept
Federated Investors
Geode Capital Management
Millennium Management
Wellington Management Company
SEB Asset Management AB

View all funds holding Upstream Bio