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Upstream Bio shares owned by Shay Capital

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

Historical chart of Shay Capital investment in Upstream Bio

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

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Quarterly reported holdings in Upstream Bio by Shay Capital

Quarter filed Position value Share count Share price at filing
2026-03-31 $90k 10k 9.00

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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