Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
17.57
-0.35 (-1.95%)
At close: Sep 12, 2025, 3:59 PM
17.57
0.00%
After-hours: Sep 12, 2025, 04:31 PM EDT
Upstream Bio dark pool activity today shows an average trade size of 10,049 with $189.24K average premium per trade.
| Rank | Time | Price | Size | Volume | Size / Vol | Size / Avg Vol | Avg. Paid |
|---|---|---|---|---|---|---|---|
| 1 | 9/8/2025 03:49 PM | 18.82 | 12,899 | 446,115 | 2.89% | 2.54% | 242.76K |
| 2 | 9/8/2025 03:42 PM | 18.85 | 7,200 | 418,534 | 1.72% | 1.42% | 135.72K |
| Date | Long Volume | Short Volume | Long / Short | % Short Change |
|---|---|---|---|---|
| Sep 10, 2025 | 79.16K | 106.11K | 0.75 | 13.52% |
| Sep 05, 2025 | 93.43K | 93.48K | 1.00 | 68.87% |
| Aug 29, 2025 | 96.86K | 55.35K | 1.75 | -21.01% |
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