Security record · archived quarter
MRBK
name pending profile ingest
6Tracked holders
0Δ holders
319.70KShares held
$4.38MReported 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 2024
Ownership over time
| 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 | n/a |
| Q3 2025 | 15 | +2 | 2.06M | $32.49M | +2 | n/a |
| Q2 2025 | 10 | 0 | 1.76M | $22.73M | n/a | n/a |
| Q1 2025 | 7 | +1 | 602.93K | $8.68M | +1 | n/a |
| Q4 2024 | 6 | 0 | 319.70K | $4.38M | n/a | n/a |
| Q3 2024 | 5 | +1 | 207.25K | $2.62M | +1 | n/a |
| Q2 2024 | 4 | n/a | 150.42K | $1.58M | n/a | n/a |
Who holds it · Q4 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 94.06K | +0.6% | $1.29M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 2 | Renaissance Technologies ✦ | 78.90K | +14.0% | $1.08M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | Millennium Management ✦ | 52.24K | +410.2% | $716,265 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Arrowstreet Capital ✦ | 44.71K | +122.9% | $612,933 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 31.45K | n/a | $431,125 | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 18.35K | +29.0% | $251,537 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
“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): 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.
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 2024 ·
Methodology ·
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