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Upstream Bio shares owned by Simplex Trading

Quarter-by-quarter ownership of Upstream Bio 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
2026-06-30 $13k 1.8k 6.92
2026-03-31 $251k 28k 9.00
2025-09-30 $105k 5.6k 18.75

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Top funds holding Upstream Bio

Simplex Trading

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