Position
SIMPLEX TRADING, LLC in Spero Therapeutics, Inc.
Back to the book · All holders of SPRO
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 $303$2.33 → $2.34
| Quarter | Shares | Value | Implied px | Est. mark | Flow | Weight |
|---|---|---|---|---|---|---|
| Q4 2025 | 35.7K | $83.1K | — | — | — | 0.0% |
| Q1 2026 | 30.3K | $70.9K | $2.34 | $303 | −$12.5K | 0.0% |