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Invest in Upstream Bio, Inc. on Stash

Upstream Bio, Inc. is a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders.

To buy fractional shares of Upstream Bio, Inc. stock, you'll need to sign up for Stash and open a personal portfolio.
Upstream Bio, Inc.

Ticker: UPB

Upstream Bio, Inc.

$25.87

-14.54%

(1W)
Dec ’25Jan ’26$26$29$31

$

UPB Performance Breakdown

Share Price

 

$25.87

Today's change

 

-1.0%

Year to date change (YTD)

 

-4.43%

Dividend yield

 

0.0

Last dividend paid

 

N/A

Last dividend pay date

 

N/A

About UPB

Upstream Bio, Inc. is a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders. The Company is developing verekitug, the only known antagonist in clinical development, that targets the receptor for thymic stromal lymphopoietin (TSLP), a cytokine which is a clinically validated driver of inflammatory response positioned upstream of multiple signaling cascades that affect a variety of immune mediated diseases. It has advanced this highly potent monoclonal antibody into separate phase II trials for the treatment of severe asthma and chronic rhinosinusitis with nasal polyps and plans to initiate development in chronic obstructive pulmonary disease. TSLP is a member of a class of epithelial cytokines, also including IL-25 and IL-33, commonly referred to as alarmins. TSLP is primarily produced by epithelial cells, especially in the lung, gastrointestinal tract and skin.

Upstream Bio, Inc. Stock Ticker

UPB

For more information

https://upstreambio.com/

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How to buy Upstream Bio, Inc. stock on Stash

Stash allows you to purchase smaller, more affordable pieces of investments (called fractional shares) rather than the whole share, which can be significantly more expensive.

Stash offers two subscription plans: Stash Growth and Stash+.

Once your market order of Upstream Bio, Inc. stock is complete, you'll officially be a shareholder of Upstream Bio, Inc.!

Invest in Upstream Bio, Inc. on Stash

Upstream Bio, Inc. is a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders.

To buy fractional shares of Upstream Bio, Inc. stock, you'll need to sign up for Stash and open a personal portfolio.