UBS Oconnor LLC
- SEC CIK
- 0001132716
- Latest filing
- Aug 14, 2026
BIIB holding history
Biogen Inc. in every 13F filed by UBS Oconnor LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
BIIB overviewAll 13F holders of BIIBFull Q4 2025 holdings
- Shares (Q2 2024)
- 0
- Sold out in Q2 2024
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 5
- Since Q3 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2024 | 0 | $0 | 0.0% | −2,500−100.0% | Sold out | Holders |
| Q1 2024 | 2,500 | $539.1K | <0.1% | −2,379−48.8% | Reduced | Holders |
| Q4 2023 | 4,879 | $1.26M | <0.1% | −17,121−77.8% | Reduced | Holders |
| Q3 2023 | 22,000 | $5.65M | 0.1% | +22,000 | New | Holders |
| Q2 2023 | 0 | $0 | 0.0% | −8,610−100.0% | Sold out | Holders |
| Q1 2023 | 8,610 | $2.39M | 0.1% | +8,610 | New | Holders |
| Q4 2022 | 0 | $0 | 0.0% | −5,950−100.0% | Sold out | Holders |
| Q3 2022 | 5,950 | $1.59M | <0.1% | +5,950 | New | Holders |