Castleview Partners, LLC
- SEC CIK
- 0001737088
- Latest filing
- Jul 20, 2026
BIIB holding history
Biogen Inc. in every 13F filed by Castleview Partners, 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 Q2 2026 holdings
- Shares (Q3 2024)
- 0
- Sold out in Q3 2024
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 12
- Since Q2 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q3 2024 | 0 | $0 | 0.0% | −28−100.0% | Sold out | Holders |
| Q2 2024 | 28 | $6.49K | <0.1% | +5+21.7% | Added | Holders |
| Q1 2024 | 23 | $4.96K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2023 | 23 | $5.95K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2023 | 23 | $5.91K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2023 | 23 | $6.55K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2023 | 23 | $6.39K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2022 | 23 | $6.37K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2022 | 23 | $6.00K | <0.1% | −2−8.0% | Reduced | Holders |
| Q2 2022 | 25 | $15.2K | <0.1% | +2+8.7% | Added | Holders |
| Q1 2022 | 23 | $4.00K | <0.1% | −21,089−99.9% | Reduced | Holders |
| Q4 2021 | 21,112 | $88.0K | <0.1% | – | No prior filing | Holders |
| Q3 2021 | – | – | – | – | Not filed | Holders |
| Q2 2021 | 23 | $8.00K | <0.1% | – | No prior filing | Holders |