Security record · archived quarter
MSTZ
name pending profile ingest
7Tracked holders
0Δ holders
369.57KShares held
$6.34MReported value
+0New positions
−0Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -30.0% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Susquehanna International Group, Llp | 209.31K | — | $3.59M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Jane Street Group, Llc | 93.63K | — | $1.61M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | IMC-Chicago, LLC | 22.74K | — | $389,991 | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Optiver Holding B.V. | 21.58K | — | $370,132 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 5 | Citadel Advisors ✦ | 13.36K | -95.5% | $229,193 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | Citigroup Inc | 8.42K | — | $144,437 | 0.0% | n/c | 1 | SEC ↗ |
| 7 | UBS Group AG | 518 | — | $8,884 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 16 holders, 580.31K shares, $7.08M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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