Security record · archived quarter
GLGG
name pending profile ingest
4Tracked holders
+2Δ holders
46.67KShares held
$203,393Reported value
+3New positions
−1Exits
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 | Optiver Holding B.V. | 26.38K | +1444.6% | $114,981 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | IMC-Chicago, LLC | 17.78K | New | $77,473 | 0.0% | New | 1 | SEC ↗ |
| 3 | Citigroup Inc | 2.24K | New | $9,780 | 0.0% | New | 1 | SEC ↗ |
| 4 | Simplex Trading, Llc | 266 | New | $1,159 | 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
| IMC-Chicago, LLC | $77,473 | 0.0% |
| Citigroup Inc | $9,780 | 0.0% |
| Simplex Trading, Llc | $1,159 | 0.0% |
Exited
| UBS Group AG | $7,494 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 4 holders, 46.67K shares, $203,393 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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