Position
SIMPLEX TRADING, LLC in Anterix Inc.
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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 $368.9K$21.83 → $38.19
| Quarter | Shares | Value | Implied px | Est. mark | Flow | Weight |
|---|---|---|---|---|---|---|
| Q4 2025 | 22.6K | $492.3K | — | — | — | 0.0% |
| Q1 2026 | 43.8K | $1.67M | $38.19 | $368.9K | $809.6K | 0.0% |