Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in RBB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.3M | $35.4M | +13.2% | 7.630% | 0.00% |
| 2 | DIMENSIONAL FUND ADVISORS LP | 902K | $24.7M | +8.7% | 5.328% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 641K | $17.6M | -2.8% | 3.787% | 0.00% |
| 4 | AMERICAN CENTURY COMPANIES INC | 536K | $14.7M | +14.7% | 3.167% | 0.01% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 371K | $10.2M | +6.7% | 2.188% | 0.00% |
| 6 | STATE STREET CORP | 338K | $9.3M | +3.9% | 1.994% | 0.00% |
| 7 | Hillsdale Investment Management Inc. | 327K | $9.0M | +47.8% | 1.932% | 0.20% |
| 8 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 224K | $6.1M | +12.1% | 1.322% | 0.00% |
| 9 | MORGAN STANLEY | 207K | $5.7M | +55.8% | 1.220% | 0.00% |
| 10 | Qube Research & Technologies Ltd | 196K | $5.4M | +231.7% | 1.155% | 0.00% |
| 11 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 185K | $5.1M | +0.6% | 1.093% | 0.01% |
| 12 | Rhino Investment Partners, Inc | 178K | $4.9M | -47.3% | 1.053% | 1.48% |
| 13 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 173K | $4.7M | +4.1% | 1.019% | 0.08% |
| 14 | ALGERT GLOBAL LLC | 156K | $4.3M | β | 0.922% | 0.05% |
| 15 | RAYMOND JAMES FINANCIAL INC | 150K | $4.1M | β | 0.888% | 0.00% |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | 136K | $3.7M | +12.7% | 0.804% | 0.00% |
| 17 | NORTHERN TRUST CORP | 126K | $3.4M | +8.1% | 0.741% | 0.00% |
| 18 | TWO SIGMA INVESTMENTS, LP | 118K | $3.2M | +95.4% | 0.696% | 0.00% |
| 19 | ALLIANCEBERNSTEIN L.P. | 143K | $3.1M | -62.6% | 0.844% | 0.00% |
| 20 | EJF Capital LP | 109K | $3.0M | +0.4% | 0.645% | 2.00% |
| 21 | LOS ANGELES CAPITAL MANAGEMENT LLC | 108K | $3.0M | +245.7% | 0.639% | 0.01% |
| 22 | AQR CAPITAL MANAGEMENT LLC | 106K | $2.9M | +38.0% | 0.628% | 0.00% |
| 23 | Empowered Funds, LLC | 105K | $2.9M | +3.0% | 0.617% | 0.02% |
| 24 | Connor, Clark & Lunn Investment Management Ltd. | 103K | $2.8M | +66.2% | 0.610% | 0.01% |
| 25 | Bank of New York Mellon Corp | 98K | $2.7M | +10.1% | 0.578% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in RBB β a direct measure of their conviction.
Filings activity in RBB during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 142 | +20% | 57.59% | +2.17 pp | $249M | +29% |
| Q1 2026 | 118 | +7.3% | 55.42% | +3.03 pp | $193M | +9.4% |
| Q4 2025 | 110 | +7.8% | 52.39% | +2.12 pp | $177M | +14% |
| Q3 2025 | 102 | +8.5% | 50.27% | +2.05 pp | $155M | +10% |
| Q2 2025 | 94 | +5.6% | 48.22% | +0.86 pp | $140M | +5.9% |
| Q1 2025 | 89 | 2.2% | 47.36% | 0.44 pp | $132M | 20% |
| Q4 2024 | 91 | +2.2% | 47.80% | +1.55 pp | $165M | 7.1% |
| Q3 2024 | 89 | β | 46.25% | β | $178M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying RBB stock.
Based on Q2 2026 13F filings, institutional ownership of RBB Bancorp stands at 57.6%, held across 142 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of RBB, with approximately 1,292,135 shares worth $0.04B as of Q2 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of RBB, including TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for RBB is 69 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
32 institutions opened new positions in RBB during Q2 2026, while 7 fully exited. 99 added to existing positions and 9 trimmed.
RBB institutional ownership rose by 2.17 percentage points quarter-over-quarter, with a net change of +24 holders.
The top 10 institutions account for 55.5% of all reported 13F value in RBB, and the top 25 account for 77.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
RBB Bancorp (RBB) Institutional Ownership