Security record
BULX
name pending profile ingest
4Tracked holders
+1Δ holders
82.41KShares held
$194,479Reported value
+1New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Citadel Advisors ✦ | 31.45K | -2.8% | $74,213 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Optiver Holding B.V. | 25.37K | +229.1% | $59,880 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Susquehanna International Group, Llp | 25.08K | +39.6% | $59,189 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | UBS Group AG | 507 | New | $1,197 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| UBS Group AG | $1,197 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 4 holders, 82.41K shares, $194,479 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: Q1 2026 ·
Methodology ·
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