RBB BANCORP RBB
COM · Common Stock · CUSIP 74930B105
- SectorFinancials
- IndustryState Commercial Banks
- HeadquartersLos Angeles, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($3.5m this quarter). Holder counts are more reliable. Shares outstanding: 16.9m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $27.33. Options: 1 managers hold calls ($2.7k notional), 1 hold puts ($2.7k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 71 |
| Q4 2022 | 76 |
| Q1 2023 | 76 |
| Q2 2023 | 78 |
| Q3 2023 | 76 |
| Q4 2023 | 76 |
| Q1 2024 | 75 |
| Q2 2024 | 74 |
| Q3 2024 | 90 |
| Q4 2024 | 94 |
| Q1 2025 | 91 |
| Q2 2025 | 96 |
| Q3 2025 | 107 |
| Q4 2025 | 112 |
| Q1 2026 | 120 |
| Q2 2026 | 145 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 48 | 29 |
| Q4 2024 | 40 | 33 |
| Q1 2025 | 40 | 41 |
| Q2 2025 | 49 | 33 |
| Q3 2025 | 66 | 30 |
| Q4 2025 | 50 | 54 |
| Q1 2026 | 62 | 41 |
| Q2 2026 | 99 | 29 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $0 | $3.8k | — |
| Q4 2025 | $0 | $4.1k | — |
| Q1 2026 | $2.1k | $4.3k | 2.00 |
| Q2 2026 | $2.7k | $2.7k | 1.00 |
Biggest buyers
| ACADIAN ASSET MANAGEMENT LLC | Added | +302.9k |
| ALGERT GLOBAL LLC | New | +156.2k |
| BlackRock, Inc. | Added | +150.8k |
| RAYMOND JAMES FINANCIAL INC | New | +150.4k |
| Qube Research & Technologies Ltd | Added | +136.6k |
| Hillsdale Investment Management Inc. | Added | +105.8k |
| MARSHALL WACE, LLP | New | +97.8k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Added | +76.9k |
| MORGAN STANLEY | Added | +74.0k |
| DIMENSIONAL FUND ADVISORS LP | Added | +72.1k |
Biggest sellers
| FJ Capital Management LLC | Sold out | -1.5m |
| ALLIANCEBERNSTEIN L.P. | Reduced | -239.4k |
| Rhino Investment Partners, Inc | Reduced | -160.4k |
| North Reef Capital Management LP | Sold out | -64.2k |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | -18.7k |
| Jump Financial, LLC | Sold out | -11.3k |
| FRANKLIN RESOURCES INC | Sold out | -10.7k |
| Invesco Ltd. | Reduced | -8.4k |
| SEI INVESTMENTS CO | Reduced | -5.6k |
| PNC Financial Services Group, Inc. | Reduced | -2.4k |
Biggest calls
| SIMPLEX TRADING, LLC | Unchanged | $2.7k100 shares |
Biggest puts
| SIMPLEX TRADING, LLC | New | $2.7k100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2026-07-14 | 5.3% |
Fell to 5% or below in the last year: FJ Capital Management LLC (0.0%, 2026-08-06), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $505.4k | — |
| Q1 2025 | 1 | $178.0k | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $24.3k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 4 | $696.8k | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-04 | Morris David Richard Director | Sold | $46.7k1.9k shares |
| 2026-05-26 | Fan Gary EVP/Chief Operations Officer | Sold | $56.9k2.4k shares |
| 2026-05-07 | LIN CHUANG I Director | Sold | $242.3k10.0k shares |
| 2026-05-04 | Morris David Richard Director | Sold | $107.5k4.5k shares |
| 2026-04-29 | Fan Gary EVP/Chief Operations Officer | Sold | $144.2k6.0k shares |
| 2026-04-23 | Bennett Bill Director | Sold | $99.2k4.1k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.3m $35.4m | Added +150.8k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 902.3k $24.7m | Added +72.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 641.3k $17.6m | Reduced -18.7k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 536.4k $14.7m | Added +68.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 400.5k $11.0m | Added +302.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 370.6k $10.2m | Added +23.2k |
| STATE STREET CORP 0.00% of their portfolio | 337.6k $9.3m | Added +12.8k |
| Hillsdale Investment Management Inc. 0.20% of their portfolio | 327.2k $9.0m | Added +105.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 223.9k $6.1m | Added +24.1k |
| MORGAN STANLEY 0.00% of their portfolio | 206.6k $5.7m | Added +74.0k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 195.6k $5.4m | Added +136.6k |
| LSV ASSET MANAGEMENT 0.01% of their portfolio | 190.6k $5.2m | Added +2.2k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 185.2k $5.1m | Added +1.1k |
| Rhino Investment Partners, Inc 1.48% of their portfolio | 178.4k $4.9m | Reduced -160.4k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 172.7k $4.7m | Added +6.7k |
| ALGERT GLOBAL LLC 0.05% of their portfolio | 156.2k $4.3m | New |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 150.4k $4.1m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 142.9k $3.1m | Reduced -239.4k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 136.3k $3.7m | Added +15.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 125.6k $3.4m | Added +9.4k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 117.9k $3.2m | Added +57.5k |
| EJF Capital LP 2.00% of their portfolio | 109.3k $3.0m | Added +401 |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 108.2k $3.0m | Added +76.9k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 106.3k $2.9m | Added +29.3k |
| Empowered Funds, LLC 0.02% of their portfolio | 104.5k $2.9m | Added +3.1k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 103.3k $2.8m | Added +41.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 97.9k $2.7m | Added +9.0k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 97.8k $2.7m | New |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 97.0k $2.7m | Added +2.3k |
| Trexquant Investment LP 0.01% of their portfolio | 87.1k $2.4m | Added +16.2k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 86.4k $2.4m | Added +3.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 80.1k $2.2m | Added +16.5k |
| Quantinno Capital Management LP 0.00% of their portfolio | 75.4k $2.1m | Added +9.3k |
| Squarepoint Ops LLC 0.00% of their portfolio | 68.0k $1.9m | Added +709 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 66.6k $1.8m | Added +22.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 61.5k $1.7m | Added +1.8k |
| UBS Group AG 0.00% of their portfolio | 56.8k $1.6m | Added +44.3k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 54.3k $1.5m | Reduced -2.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 52.4k $1.4m | Added +22.8k |
| Nuveen, LLC 0.00% of their portfolio | 50.8k $1.4m | Added +2.2k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 50.4k $1.4m | Added +39.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 49.8k $1.4m | Added +40.0k |
| Integrated Quantitative Investments LLC 0.22% of their portfolio | 49.0k $1.3m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 47.5k $1.3m | Added +1.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 46.7k $1.3m | Added +10.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 46.6k $1.3m | Added +3.9k |
| Walleye Capital LLC 0.01% of their portfolio | 45.8k $1.3m | New |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 43.5k $1.2m | New |
| JOHN G ULLMAN & ASSOCIATES INC 0.13% of their portfolio | 40.5k $1.1m | Unchanged |
| MARTINGALE ASSET MANAGEMENT L P 0.03% of their portfolio | 38.9k $1.1m | Added +21.9k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 37.4k $1.0m | Added +18.5k |
| Engineers Gate Manager LP 0.01% of their portfolio | 37.2k $1.0m | Added +25.0k |
| Creative Planning 0.00% of their portfolio | 34.5k $944.8k | New |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 33.9k $928.0k | Added +1.1k |
| Invesco Ltd. 0.00% of their portfolio | 32.6k $894.1k | Reduced -8.4k |
| Odyssean, LLC 0.14% of their portfolio | 32.5k $890.9k | Added +9.4k |
| Unison Advisors LLC 0.06% of their portfolio | 32.2k $881.8k | Added +211 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 30.3k $830.0k | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 29.7k $814.2k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 29.6k $812.4k | Added +11.4k |
| Legato Capital Management LLC 0.06% of their portfolio | 28.1k $771.3k | New |
| XTX Topco Ltd 0.01% of their portfolio | 27.2k $746.7k | New |
| STRS OHIO 0.00% of their portfolio | 26.7k $732.0k | Reduced -700 |
| BAILARD, INC. 0.01% of their portfolio | 21.3k $583.9k | New |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 20.5k $563.3k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 20.5k $561.6k | Reduced -435 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 20.2k $554.0k | Added +16.6k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 18.8k $516.1k | New |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 17.4k $477.9k | Added +1 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 16.0k $438.0k | Added +10.3k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 14.3k $392.6k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 13.7k $376.2k | Added +7.6k |
| Man Group plc 0.00% of their portfolio | 13.0k $356.5k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 12.7k $347.0k | Added +2.0k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 11.0k $302.9k | New |
| Centiva Capital, LP 0.01% of their portfolio | 11.0k $302.7k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 11.0k $302.3k | Reduced -5.6k |
| OXFORD ASSET MANAGEMENT LLP 0.15% of their portfolio | 10.9k $298.5k | Not comparable |
| Sterling Capital Management LLC 0.00% of their portfolio | 10.4k $285.4k | Added +9.9k |
| CITIGROUP INC 0.00% of their portfolio | 10.3k $283.6k | Added +8.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 10.3k $282.4k | Unchanged |
| MetLife Investment Management, LLC 0.00% of their portfolio | 10.1k $275.5k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 10.0k $275.2k | New |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 9.2k $252.0k | Added +2.6k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 9.0k $246.4k | Reduced -1.8k |
| AXQ CAPITAL, LP 0.03% of their portfolio | 8.7k $238.0k | New |
| SENTINEL TRUST CO LBA 0.02% of their portfolio | 7.9k $217.0k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 7.5k $206.8k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 7.5k $206.8k | Reduced -195 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.4k $201.3k | Added +286 |
| Quadrature Capital Ltd 0.00% of their portfolio | 7.3k $200.3k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 5.5k $152.1k | Added +1.7k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 5.2k $142.9k | Unchanged |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 4.6k $126.5k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 4.5k $124.4k | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 4.4k $119.8k | Reduced -2.4k |
| FMR LLC 0.00% of their portfolio | 3.8k $104.1k | Added +1.3k |
| BARCLAYS PLC 0.00% of their portfolio | 2.1k $58.5k | Reduced -1.0k |
| Legal & General Group Plc 0.00% of their portfolio | 1.7k $45.6k | Added +188 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 1.6k $44.2k | Unchanged |