Position
SIMPLEX TRADING, LLC in Alector, Inc.
Back to the book · All holders of ALEC
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 $40.4K$1.56 → $2.15
| Quarter | Shares | Value | Implied px | Est. mark | Flow | Weight |
|---|---|---|---|---|---|---|
| Q4 2025 | 82K | $127.9K | — | — | — | 0.0% |
| Q1 2026 | 68.5K | $147.2K | $2.15 | $40.4K | −$21.1K | 0.0% |