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Upstream Bio shares owned by Vanguard Group

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

Historical chart of Vanguard Group investment in Upstream Bio

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

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Quarterly reported holdings in Upstream Bio by Vanguard Group

Quarter filed Position value Share count Share price at filing
2025-09-30 $46M 2.4M 18.81
2025-06-30 $24M 2.2M 10.98
2025-03-31 $5.6M 907k 6.12
2024-12-31 $15M 915k 16.44