Which hedge funds own UPB? UPSTREAM BIO INC, Q2 2026 13F holders
6 of the hedge funds tracked by WhaleCreep disclosed a position in UPB (UPSTREAM BIO INC) in their Q2 2026 13F filings, worth $25.2m in total. The largest holder by portfolio weight is Woodline Partners at 0.0% of its book. 1 manager opened a new position this quarter: Brevan Howard Capital Management. 2 exited: Marshall Wace, Tudor Investment.
6tracked managers holding
1opened this quarter
2exited this quarter
Which hedge funds hold UPB? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Woodline Partners | Q2 2026 | 0.0% | $5.8m | 831,481 | 0% | held |
| Millennium Management | Q2 2026 | 0.0% | $7.9m | 1,143,775 | 22% | added |
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $348.6k | 50,369 | – | new |
| Point72 Asset Management LP | Q2 2026 | 0.0% | $3.1m | 453,011 | 154% | added |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $7.2m | 1,036,044 | 26% | added |
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $908.6k | 131,300 | 111% | added |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Marshall Wace | 0.0% | $600.9k |
| Tudor Investment | 0.0% | $237.7k |
How has hedge fund ownership of UPB changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 6 | $25.2m |
| Q1 2026 | 7 | $26.3m |
| Q4 2025 | 2 | $21.1m |
| Q3 2025 | 1 | $11.3m |
| Q2 2025 | 1 | $6.1m |
| Q1 2025 | 1 | $3.4m |
| Q4 2024 | 2 | $9.4m |
Counts every tracked manager that disclosed UPB in that quarter's filing, including managers that have since stopped filing.