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Upstream Bio shares owned by Simplex Trading

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

Historical chart of Simplex Trading investment in Upstream Bio

Tip: Access up to 7 years of quarterly data

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

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Quarterly reported holdings in Upstream Bio by Simplex Trading

Quarter filed Position value Share count Share price at filing
2025-12-31 $13k 466 27.15

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Top funds holding Upstream Bio

FMR
OrbiMed Advisors
BlackRock
Decheng Capital
Norges Bank Investment Management
Enavate Sciences GP
Vanguard Group
UBS Group
Altshuler Shaham
Bain Capital Life Sciences Investors
Omega Fund Management
State Street Corporation
VR Adviser
Wellington Management Company
Geode Capital Management

View all funds holding Upstream Bio