Institutional Ownership
Upstream Bio Inc
CUSIP 91678A107COMUPBQ1 2026
Shares Short
3.62M
As of Jul 15, 2026
Days to Cover
8.18
Short shares ÷ avg daily volume
Change vs Prior
-11.9%
vs previous settlement
Avg Daily Volume
442.1K
FINRA reported ADV
Short Interest History
17 settlements on record · FINRA consolidated
Higher short interest is bearish: increases show red, decreases green.
| Settlement | Shares Short | Prior | Change | Avg Daily Vol | Days to Cover |
|---|---|---|---|---|---|
| Jul 15, 2026 | 3.62M | 4.11M | -11.9% | 442.1K | 8.18 |
| Jun 30, 2026 | 4.11M | 3.90M | +5.3% | 718.3K | 5.72 |
| Jun 15, 2026 | 3.90M | 3.64M | +7.1% | 711.5K | 5.48 |
| May 29, 2026 | 3.64M | 3.40M | +7.2% | 534.4K | 6.81 |
| May 15, 2026 | 3.40M | 3.22M | +5.4% | 507.8K | 6.69 |
| Apr 30, 2026 | 3.22M | 3.02M | +6.6% | 564.2K | 5.71 |
| Apr 15, 2026 | 3.02M | 3.44M | -12.0% | 576.9K | 5.24 |
| Mar 31, 2026 | 3.44M | 4.75M | -27.7% | 991.8K | 3.46 |
| Mar 13, 2026 | 4.75M | 4.09M | +16.3% | 1.07M | 4.44 |
| Feb 27, 2026 | 4.09M | 3.53M | +15.8% | 2.23M | 1.83 |
| Feb 13, 2026 | 3.53M | 3.18M | +10.9% | 2.32M | 1.52 |
| Jan 30, 2026 | 3.18M | 3.45M | -7.8% | 574.4K | 5.54 |