Position
Squarepoint Ops LLC in Biogen Inc.
Back to the book · All holders of BIIB
Estimated mark uses implied 13F prices (value ÷ shares). Adds are treated as happening at this quarter’s mark; cuts at last quarter’s. Share jumps can be splits, not buys. This is not realized P&L.
Latest estimated mark $264.6K$175.99 → $183.33
| Quarter | Shares | Value | Implied px | Est. mark | Flow | Weight |
|---|---|---|---|---|---|---|
| Q4 2025 | 146.4K | $25.8M | — | — | — | 0.0% |
| Q1 2026 | 36.1K | $6.61M | $183.33 | $264.6K | −$19.4M | 0.0% |