NASDAQ$UPB
Upstream Bio Inc · Q4 2025 earnings
Q4 2025 earnings · · Before market open
Reports awaiting report
Upstream Bio Inc hasn't published Q4 2025 actuals yet. The tiles below frame what to compare against; sections further down are historical context only.
Most recent report Q1 2026
- Revenue
- $1.03M
- EPS
- -$0.75
Revenue & EPS history
Upstream Bio Inc · Revenue · Quarterly
$1.03M
Q1 2026+82.7%vs Q1 2025
Historical earnings impact
How earnings announcements have historically affected this stock's price.
Avg. return before/after earnings
Based on 3 quarterly earnings reports · overlaid with Q4 2025
+0.8%
Avg return
Earnings day
-2.0%
Avg return
5 days after
+4.5%
Avg return
30 days after
67%
4 / 6 earnings
Positive
+7.9%
Q2 2025
Best reaction
-5.4%
Q1 2025
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q4 2025 | +0.5% | -8.4% | — | |
| Q1 2026 | +4.7% | -5.3% | -31.9% | |
| Q3 2025 | -4.3% | -6.2% | +10.8% | |
| Q2 2025 | +7.9% | +7.0% | +28.8% | |
| Q1 2025 | -5.4% | +1.6% | +24.8% | |
| Q3 2024 | +1.7% | -0.7% | -10.3% |
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