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Upstream Bio (UPB) Stock Chart & Stock Price History

Upstream Bio logo
$6.69 -0.28 (-4.06%)
As of 01:35 PM Eastern
This is a fair market value price provided by Massive. Learn more.

Upstream Bio Stock Price Performance

The Upstream Bio (UPB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 62.07%, with a year-to-date return of -75.37%. In the past month, the stock has increased 4.32%, reflecting recent market activity.

As of the latest close, Upstream Bio traded at $6.97 with a market cap of $381.75 million and volume of 434,241 shares.

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5 Day
Performance
-10.96%
1 Month
Performance
+4.32%
3 Month
Performance
-20.11%
Year-To-Date
Performance
-75.37%
1 Year
Performance
-62.07%

UPB Stock Chart for Monday, August, 24, 2026

Upstream Bio Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/21/2026$6.85$6.97
+1.75%
$7.01$6.85434,241 shs$381.75 million
08/20/2026$7.51$6.85
-8.79%
$7.56$6.75592,928 shs$375.17 million
08/19/2026$6.85$7.51
+9.64%
$7.53$6.91574,118 shs$411.33 million
08/18/2026$7.14$6.85
-4.06%
$7.44$6.73461,648 shs$375.17 million
08/17/2026$7.07$7.14
+0.99%
$7.19$6.86852,440 shs$391.06 million
08/14/2026$6.91$7.07
+2.32%
$7.14$6.80688,249 shs$387.22 million
08/13/2026$6.91$6.91$7.04$6.87378,835 shs$376.04 million
08/12/2026$7.09$6.91
-2.54%
$7.25$6.84635,118 shs$376.04 million
08/11/2026$7.44$7.09
-4.70%
$7.70$7.01628,056 shs$385.84 million
08/10/2026$7.25$7.44
+2.62%
$7.62$7.20869,590 shs$404.89 million
08/07/2026$6.87$7.25
+5.53%
$7.26$6.89621,837 shs$394.55 million
08/06/2026$6.74$6.87
+1.93%
$7.17$6.66427,171 shs$373.87 million
08/05/2026$6.79$6.74
-0.74%
$6.88$6.58917,141 shs$366.79 million
08/04/2026$6.42$6.79
+5.76%
$6.92$6.401.36 million shs$369.51 million
08/03/2026$6.31$6.42
+1.74%
$6.43$6.18774,290 shs$349.38 million
07/31/2026$6.57$6.31
-3.96%
$6.69$6.29297,714 shs$343.39 million
07/30/2026$6.41$6.57
+2.50%
$6.67$6.29320,622 shs$357.54 million
07/29/2026$6.40$6.41
+0.16%
$6.48$6.21702,777 shs$348.83 million
07/28/2026$6.40$6.40$6.54$6.09433,233 shs$348.29 million
07/27/2026$6.41$6.40
-0.16%
$6.60$6.26459,477 shs$348.29 million
07/24/2026$6.40$6.41
+0.16%
$6.61$6.16626,430 shs$348.83 million
07/23/2026$6.59$6.40
-2.88%
$6.59$6.32626,146 shs$348.29 million

This page (NASDAQ:UPB) was last updated on 8/24/2026 by MarketBeat.com Staff.
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