MRBK
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth +16.7% ·
share flow +30.0% ·
net new positions +14.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 49 | +1 | 4.97M | $97.79M | +4 | −3 |
| Q1 2026 | 50 | +3 | 4.11M | $74.78M | +6 | −3 |
| Q4 2025 | 47 | +1 | 3.82M | $67.11M | +1 | — |
| Q3 2025 | 15 | +2 | 2.06M | $32.49M | +2 | — |
| Q2 2025 | 10 | 0 | 1.76M | $22.73M | — | — |
| Q1 2025 | 7 | +1 | 602.93K | $8.68M | +1 | — |
| Q4 2024 | 6 | 0 | 319.70K | $4.38M | — | — |
| Q3 2024 | 5 | +1 | 207.25K | $2.62M | +1 | — |
| Q2 2024 | 4 | — | 150.42K | $1.58M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Millennium Management ✦ | 205.14K | +292.7% | $2.95M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Marshall Wace ✦ | 111.55K | New | $1.61M | 0.0% | New | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 100.97K | +7.3% | $1.45M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 4 | Arrowstreet Capital ✦ | 82.73K | +85.0% | $1.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Renaissance Technologies ✦ | 38.00K | -51.8% | $547,200 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 33.10K | +80.4% | $476,611 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 7 | State Street Global Advisors ✦ (passive) | 31.45K | 0.0% | $452,822 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $1.61M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 45 holders, 507.90K shares, $3.69M 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.