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Upstream Bio shares owned by Alyeska Investment Group

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

Historical chart of Alyeska Investment Group investment in Upstream Bio

Tip: Access up to 7 years of quarterly data

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

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Quarterly reported holdings in Upstream Bio by Alyeska Investment Group

Quarter filed Position value Share count Share price at filing
2025-06-30 $933k 85k 10.98
2025-03-31 $520k 85k 6.12
2024-12-31 $1.4M 85k 16.44