Siren, L.L.C.
- SEC CIK
- 0002005245
- Latest filing
- Aug 13, 2026
ANNX holding history
Annexon, Inc. in every 13F filed by Siren, L.L.C., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
ANNX overviewAll 13F holders of ANNXFull Q2 2026 holdings
- Shares (Q2 2026)
- 4,458,646
- Value
- $25.5M
- % of portfolio
- 0.5%
- Quarters held
- 2
- Since Q1 2026