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Upstream Bio shares owned by Morgan Stanley

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

Historical chart of Morgan Stanley investment in Upstream Bio

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

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Quarterly reported holdings in Upstream Bio by Morgan Stanley

Quarter filed Position value Share count Share price at filing
2026-03-31 $5.0M 553k 9.00
2025-12-31 $3.3M 122k 27.15
2025-09-30 $1.6M 88k 18.81
2025-06-30 $1.1M 99k 10.98
2024-12-31 $710k 43k 16.44