MULL
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth +30.0% ·
share flow +30.0% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Citadel Advisors ✦ | 56.99K | +350.9% | $6.06M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Simplex Trading, Llc | 10.75K | New | $1.14M | 0.0% | New | 1 | SEC ↗ |
| 3 | Optiver Holding B.V. | 10.72K | +1046.4% | $1.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Barclays Plc | 10.06K | New | $1.07M | 0.0% | New | 1 | SEC ↗ |
| 5 | Jane Street Group, Llc | 3.90K | New | $414,272 | 0.0% | New | 1 | SEC ↗ ×2 |
| 6 | Belvedere Trading LLC | 752 | -87.8% | $79,983 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | Group One Trading Llc | 386 | New | $41,055 | 0.0% | New | 1 | SEC ↗ |
| 8 | UBS Group AG | 120 | -48.9% | $12,763 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | Morgan Stanley ✦ | 3 | -40.0% | $319 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Simplex Trading, Llc | $1.14M | 0.0% |
| Barclays Plc | $1.07M | 0.0% |
| Jane Street Group, Llc | $414,272 | 0.0% |
| Group One Trading Llc | $41,055 | 0.0% |
Exited
| Susquehanna International… | $1.90M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 14 holders, 111.88K shares, $11.90M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.