Upstream Bio Inc.
UPB | NASDAQ
$5.37
+$0.03 (+0.56%)
At close: Sep 21, 2026, 4:00 PM ET
$5.37
$0 (-0.09%)
After-hours:
Sep 21, 2026, 7:30 PM ET
Market Cap History History
Annual Market Cap Change Annual Change
| Date | Market Cap | Change | % Change |
|---|---|---|---|
| Sep 20, 2026 | $292.76M | -$1.3B | -81.59% |
| Dec 25, 2025 | $1.59B | $604.64M | +61.37% |
| Dec 26, 2024 | $985.25M | n/a | n/a |
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