Upstream Bio, Inc. (UPB) float is 28.5M
Upstream Bio, Inc. (UPB) float is 28.5M as of 2024-12-31. That figure is from Lician’s product cache for this healthcare name — not a placeholder and not copied across tickers.
Read the full UPB research page for quote, filings, and the rest of the model. This satellite exists so “Upstream Bio, Inc. float” can rank with the actual number, then send you to /stock/upb.