Who owns RBB Bancorp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of RBB from SEC Form 13F filings across 146 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 146 institutions disclosed 9.9M shares of RBB Bancorp worth $251.9M — about 58% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
146
13F holders
$251.9M
value, 2026 filers
58%
of shares outstanding (9.9M sh)
38
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of RBB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.3M | $35.4M | 0.0% | 7.6% | +13.2% |
| 2 | DIMENSIONAL FUND ADVISORS LP | 902,290 | $24.7M | 0.0% | 5.3% | +8.7% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 641,304 | $17.6M | 0.0% | 3.8% | -2.8% |
| 4 | AMERICAN CENTURY COMPANIES INC | 536,436 | $14.7M | 0.0% | 3.2% | +14.7% |
| 5 | ACADIAN ASSET MANAGEMENT LLC | 400,451 | $10,966 | 0.0% | 2.4% | +310.4% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 370,553 | $10.2M | 0.0% | 2.2% | +6.7% |
| 7 | STATE STREET CORP | 337,621 | $9.3M | 0.0% | 2% | +3.9% |
| 8 | Hillsdale Investment Management Inc. | 327,169 | $9.0M | 0.2% | 1.9% | +47.8% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 223,877 | $6.1M | 0.0% | 1.3% | +12.1% |
| 10 | MORGAN STANLEY | 206,553 | $5.7M | 0.0% | 1.2% | +55.8% |
| 11 | Qube Research & Technologies Ltd | 195,579 | $5.4M | 0.0% | 1.1% | +231.7% |
| 12 | LSV ASSET MANAGEMENT | 190,600 | $5,225 | 0.0% | 1.1% | +1.2% |
| 13 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 185,168 | $5.1M | 0.0% | 1.1% | +0.6% |
| 14 | Rhino Investment Partners, Inc | 178,388 | $4.9M | 1.5% | 1% | -47.3% |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 172,655 | $4.7M | 0.1% | 1% | +4.1% |
| 16 | ALGERT GLOBAL LLCNEW | 156,224 | $4.3M | 0.1% | 0.9% | new |
| 17 | RAYMOND JAMES FINANCIAL INCNEW | 150,380 | $4.1M | 0.0% | 0.9% | new |
| 18 | ALLIANCEBERNSTEIN L.P. | 142,884 | $3.1M | 0.0% | 0.8% | -62.6% |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | 136,257 | $3.7M | 0.0% | 0.8% | +12.7% |
| 20 | NORTHERN TRUST CORP | 125,575 | $3.4M | 0.0% | 0.7% | +8.1% |
| 21 | TWO SIGMA INVESTMENTS, LP | 117,871 | $3.2M | 0.0% | 0.7% | +95.4% |
| 22 | EJF Capital LP | 109,258 | $3.0M | 2.0% | 0.6% | +0.4% |
| 23 | LOS ANGELES CAPITAL MANAGEMENT LLC | 108,171 | $3.0M | 0.0% | 0.6% | +245.7% |
| 24 | AQR CAPITAL MANAGEMENT LLC | 106,302 | $2.9M | 0.0% | 0.6% | +38.0% |
| 25 | Empowered Funds, LLC | 104,534 | $2.9M | 0.0% | 0.6% | +3.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.