Who owns UPSTREAM BIO INC?

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Analyze quarterly positions in Upstream Bio with up to 7 years of data, all consolidated into one spreadsheet

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Top investors of Upstream Bio stock

Who bought or sold UPSTREAM BIO INC this quarter?

Fund or Company Name Shares Held Valued At Change in Shares As Of Actions
Group One Trading 300.00 $8.1k -25% Dec 2025
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Who sold out of Upstream Bio?

Fund or Company Name Date Sold Shares Held Valued At
Simplex Trading Sep 2025 5.6k $105k
Persistent Asset Partners Sep 2025 462.00 $220k