Sienna Gestion
- SEC CIK
- 0002021242
- Latest filing
- Aug 13, 2026
BIIB holding history
Biogen Inc. in every 13F filed by Sienna Gestion, 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 2024)
- 0
- Sold out in Q2 2024
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 1
- Since Q1 2024