Summit Trail Advisors, LLC
- SEC CIK
- 0001698478
- Latest filing
- Aug 11, 2026
BIIB holding history
Biogen Inc. in every 13F filed by Summit Trail Advisors, 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 (Q2 2026)
- 7,082
- Value
- $1.53M
- % of portfolio
- <0.1%
- Quarters held
- 5
- Since Q2 2025
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 7,082 | $1.53M | <0.1% | +196+2.8% | Added | Holders |
| Q1 2026 | 6,886 | $1.26M | <0.1% | +1,485+27.5% | Added | Holders |
| Q4 2025 | 5,401 | $950.5K | <0.1% | −488−8.3% | Reduced | Holders |
| Q3 2025 | 5,889 | $824.9K | <0.1% | +3,202+119.2% | Added | Holders |
| Q2 2025 | 2,687 | $337.5K | <0.1% | +2,687 | New | Holders |