29-May-2026
Globe Newswire (Mon, 18-May 11:30 AM ET)
Upstream Bio Reports First Quarter 2026 Financial Results and Recent Business Highlights
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Upstream Bio Inc is a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders. It is developing verekitug, the known antagonist currently in clinical development that targets the receptor for Thymic Stromal Lymphopoietin (TSLP), a cytokine that is a clinically validated driver of inflammatory response positioned upstream of multiple signaling cascades that affect a variety of immune-mediated diseases. Verekitug has advanced into three separate world-wide, placebo-controlled, randomized Phase 2 clinical trials, two completed in chronic rhinosinusitis with nasal polyps (CRSwNP) and severe asthma, and one ongoing in chronic obstructive pulmonary disease (COPD).
Upstream Bio trades on the NASDAQ stock market under the symbol UPB.
As of May 29, 2026, UPB stock price climbed to $8.36 with 466,375 million shares trading.
UPB has a beta of 2.09, meaning it tends to be more sensitive to market movements. UPB has a correlation of 0.04 to the broad based SPY ETF.
UPB has a market cap of $454.95 million. This is considered a Small Cap stock.
Last quarter Upstream Bio reported $1 million in Revenue and -$.75 earnings per share. This beat revenue expectation by $654,264 and exceeded earnings estimates by $.01.
The top ETF exchange traded funds that UPB belongs to (by Net Assets): VTI, IWM, VXF, IWN, IBB.
UPB has underperformed the market in the last year with a price return of -10.6% while the SPY ETF gained +29.5%. UPB has also underperformed the stock market ETF in the last 3 month and 2 week periods returning +8.9% and -8.0%, respectively, while the SPY returned +10.5% and +2.3%, respectively.
UPB support price is $8.01 and resistance is $8.63 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that UPB shares will trade within this expected range on the day.