RBB Bancorp
Ownership
Ownership Structure
Who owns RBB Bancorp (RBB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.4% of the shares are freely tradable; institutional investors hold 56.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 6.75 | 1,141,348 | -2.7 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 5.33 | 902,290 | +8.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.90 | 660,025 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 3.17 | 536,436 | +14.7 | 06/30/2026 |
| AllianceBernstein L.P. | 2.26 | 382,318 | +30.0 | 03/31/2026 |
| Geode Capital Management, LLC | 2.05 | 347,330 | +1.6 | 03/31/2026 |
| Rhino Investment Partners, Inc. | 2.00 | 338,810 | +9.4 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Avantis US Small Cap Value ETF | 2.92 | 493,607 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.88 | 487,896 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.70 | 457,442 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Lee Johnny C | President/CEO | 18,195 | 485,807 $ | Jul 20, 2026 | direct |
| Hanson Diana | Chief Accounting Officer | 983 | 26,246 $ | Aug 19, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | Hanson Diana | Chief Accounting Officer | Other | 276 | 26.40 | 7,286 |
| Aug 19, 2026 | Hanson Diana | Chief Accounting Officer | Other | 767 | 0.00 | – |
| Jul 20, 2026 | Lee Johnny C | President/CEO | Other | 1,974 | 26.74 | 52,785 |
| Jul 20, 2026 | Lee Johnny C | President/CEO | Other | 5,500 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.