Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
6.10
-0.28 (-4.39%)
At close: Jun 12, 2026, 4:00 PM EDT
6.34
+0.24 (3.93%)
After-hours: Jun 12, 2026, 6:09 PM EDT
Upstream Bio Analyst Ratings
Ratings History
| Analyst | Firm | Rating | Rating | Action | Price Target | Upside | Date |
|---|---|---|---|---|---|---|---|
| J.P. Morgan | J.P. Morgan | Hold Downgrades $35 → $8 | Hold | Downgrades | $35 → $8 | +31.15% | Jun 12, 2026 |
| H.C. Wainwright | H.C. Wainwright | Buy Initiates $36 | Buy | Initiates | $36 | +490.16% | Jun 3, 2026 |
| William Blair | William Blair | Buy Maintains n/a | Buy | Maintains | n/a | n/a | May 19, 2026 |
| LifeSci Capital | LifeSci Capital | Buy Maintains $42 | Buy | Maintains | $42 | +588.52% | May 19, 2026 |
| Mizuho Securities | Mizuho Securities | Buy Maintains $51 → $50 | Buy | Maintains | $51 → $50 | +719.67% | May 14, 2026 |
| Truist Financial | Truist Financial | Buy Maintains $43 | Buy | Maintains | $43 | +604.92% | May 14, 2026 |
| TD Cowen | TD Cowen | Buy Maintains n/a | Buy | Maintains | n/a | n/a | May 13, 2026 |
| Piper Sandler | Piper Sandler | Buy Maintains $75 | Buy | Maintains | $75 | +1,129.51% | Apr 2, 2026 |
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Analyst Star Rankings
Our analyst star rankings are based on these four factors
- Success Rate
- The percentage of ratings that are profitable.
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- The average percentage return within one year of the rating.
- Rating Count
- The more ratings the analyst has provided, the higher the score.
- Recency
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