Upstream Bio (UPB) Stock Chart & Stock Price History

Upstream Bio logo
$6.36 +0.05 (+0.71%)
Closing price 03:59 PM Eastern
Extended Trading
$6.34 -0.02 (-0.31%)
As of 05:44 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours 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 44.12%, with a year-to-date return of -76.56%. In the past month, the stock has decreased 23.95%, reflecting recent market activity.

As of the latest close, Upstream Bio traded at $6.32 with a market cap of $343.93 million and volume of 623,890 shares.

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5 Day
Performance
+1.84%
1 Month
Performance
-23.95%
3 Month
Performance
-24.67%
Year-To-Date
Performance
-76.56%
1 Year
Performance
-44.12%

UPB Stock Chart for Wednesday, June, 24, 2026

Upstream Bio Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
06/24/2026$6.32$6.37
+0.71%
$6.71$6.32654,585 shs$346.38 million
06/23/2026$6.30$6.32
+0.32%
$6.54$6.24623,890 shs$343.93 million
06/22/2026$6.25$6.30
+0.80%
$6.60$6.25849,212 shs$342.85 million
06/19/2026$6.25$6.25$6.52$6.15828,997 shs$340.13 million
06/18/2026$6.15$6.25
+1.63%
$6.52$6.15828,997 shs$340.13 million
06/17/2026$5.92$6.15
+3.89%
$6.33$5.88839,752 shs$334.68 million
06/16/2026$6.10$5.92
-2.95%
$6.19$5.86519,873 shs$322.17 million
06/15/2026$6.10$6.10$6.28$6.01681,422 shs$331.96 million
06/12/2026$6.38$6.10
-4.39%
$6.47$5.851.43 million shs$331.96 million
06/11/2026$6.28$6.38
+1.59%
$6.40$6.11833,080 shs$347.20 million
06/10/2026$6.69$6.28
-6.13%
$6.80$6.25450,141 shs$341.76 million
06/09/2026$6.45$6.69
+3.72%
$6.78$6.42500,531 shs$364.07 million
06/08/2026$7.05$6.45
-8.51%
$7.16$6.41783,887 shs$351.01 million
06/05/2026$7.43$7.05
-5.11%
$7.45$6.98672,411 shs$383.66 million
06/04/2026$7.63$7.43
-2.62%
$7.78$7.30688,030 shs$404.34 million
06/03/2026$7.25$7.63
+5.24%
$7.86$7.40666,447 shs$415.23 million
06/02/2026$8.08$7.25
-10.27%
$7.96$7.19632,081 shs$439.71 million
06/01/2026$8.36$8.08
-3.35%
$8.64$7.99595,060 shs$439.71 million
05/29/2026$8.32$8.36
+0.48%
$8.50$8.17499,059 shs$454.95 million
05/28/2026$8.26$8.32
+0.73%
$8.38$8.13320,804 shs$452.77 million
05/27/2026$8.21$8.26
+0.61%
$8.55$8.19420,395 shs$449.51 million
05/26/2026$8.37$8.21
-1.91%
$8.45$8.10593,003 shs$446.79 million
05/25/2026$8.37$8.37$8.69$8.33354,423 shs$455.50 million

This page (NASDAQ:UPB) was last updated on 6/24/2026 by MarketBeat.com Staff.
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