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 ($2.0m this quarter). Holder counts are more reliable. Shares outstanding: 17.1m as of 2026-02-27, 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 ≈ $21.34. Options: 1 managers hold calls ($2.1k notional), 1 hold puts ($4.3k).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 38 | 30 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $0 | $0 | — |
| Q3 2025 | $0 | $3.8k | — |
| Q4 2025 | $0 | $4.1k | — |
| Q1 2026 | $2.1k | $4.3k | 2.00 |
Biggest buyers
| EJF Capital LP | New | +108.9k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | New | +94.7k |
| ALLIANCEBERNSTEIN L.P. | Added | +88.3k |
| Hillsdale Investment Management Inc. | Added | +72.0k |
| North Reef Capital Management LP | New | +64.2k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +50.7k |
| AMERICAN CENTURY COMPANIES INC | Added | +33.3k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | New | +31.3k |
| Rhino Investment Partners, Inc | Added | +29.1k |
| GOLDMAN SACHS GROUP INC | Added | +25.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -42.3k |
| BlackRock, Inc. | Reduced | -31.7k |
| Azora Capital LP | Sold out | -30.9k |
| MARSHALL WACE, LLP | Sold out | -30.8k |
| TWO SIGMA ADVISERS, LP | Sold out | -29.6k |
| BARCLAYS PLC | Reduced | -22.0k |
| MORGAN STANLEY | Reduced | -20.7k |
| MARTINGALE ASSET MANAGEMENT L P | Reduced | -20.4k |
| JPMORGAN CHASE & CO | Reduced | -20.2k |
| Point72 Asset Management, L.P. | Sold out | -12.3k |
Biggest calls
| SIMPLEX TRADING, LLC | New | $2.1k100 shares |
Biggest puts
| GROUP ONE TRADING LLC | Unchanged | $4.3k200 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 in Q1 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 |
|---|---|---|---|---|---|
| Q2 2024 | 1 | $119.6k | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| 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 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| FJ Capital Management LLC 3.64% of their portfolio | 1.5m $32.3m | Unchanged |
| BlackRock, Inc. 0.00% of their portfolio | 1.1m $24.4m | Reduced -31.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 830.2k $17.7m | Added +16.7k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 660.0k $14.1m | First filing |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 467.7k $10.0m | Added +33.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 382.3k $7.9m | Added +88.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 347.3k $7.4m | Added +5.3k |
| Rhino Investment Partners, Inc 2.01% of their portfolio | 338.8k $7.2m | Added +29.1k |
| STATE STREET CORP 0.00% of their portfolio | 324.8k $6.9m | Added +4.1k |
| Hillsdale Investment Management Inc. 0.13% of their portfolio | 221.4k $4.7m | Added +72.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 199.7k $4.3m | Reduced -455 |
| LSV ASSET MANAGEMENT 0.01% of their portfolio | 188.4k $4.0m | Reduced -10.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 184.1k $3.9m | Reduced -2.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 165.9k $3.5m | Added +7.9k |
| MORGAN STANLEY 0.00% of their portfolio | 132.6k $2.8m | Reduced -20.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 120.9k $2.6m | First filing |
| NORTHERN TRUST CORP 0.00% of their portfolio | 116.2k $2.5m | Added +8.8k |
| EJF Capital LP 1.64% of their portfolio | 108.9k $2.3m | New |
| Empowered Funds, LLC 0.01% of their portfolio | 101.5k $2.2m | Added +19.3k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 97.6k $2.1m | Added +50.7k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 94.7k $2.0m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 88.9k $1.9m | Reduced -1.3k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 82.8k $1.8m | First filing |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 77.0k $1.6m | Added +5.2k |
| Trexquant Investment LP 0.01% of their portfolio | 70.9k $1.5m | Added +18.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 67.3k $1.4m | Added +15.4k |
| Quantinno Capital Management LP 0.00% of their portfolio | 66.1k $1.4m | Added +21.4k |
| North Reef Capital Management LP 0.05% of their portfolio | 64.2k $1.4m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 63.6k $1.4m | Added +25.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 62.1k $1.3m | Added +3.0k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 60.3k $1.3m | Reduced -5.8k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 59.7k $1.3m | Added +1.0k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 59.0k $1.3m | Added +16.7k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 56.5k $1.2m | Added +15.0k |
| Nuveen, LLC 0.00% of their portfolio | 48.6k $1.0m | Added +5.0k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 46.1k $984.6k | Reduced -447 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 44.6k $952.8k | Added +22.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 42.8k $913.6k | Reduced -3.1k |
| Invesco Ltd. 0.00% of their portfolio | 41.0k $876.3k | Added +13.7k |
| JOHN G ULLMAN & ASSOCIATES INC 0.11% of their portfolio | 40.5k $866.6k | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 35.9k $766.1k | Reduced -2.6k |
| GSA CAPITAL PARTNERS LLP 0.04% of their portfolio | 32.7k $699.0k | Reduced -6.9k |
| Unison Advisors LLC 0.05% of their portfolio | 32.0k $682.9k | Added +238 |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 31.3k $668.6k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 29.6k $633.3k | Reduced -2.1k |
| Catalina Capital Group, LLC 0.39% of their portfolio | 29.6k $632.7k | Unchanged |
| STRS OHIO 0.00% of their portfolio | 27.4k $585.5k | Added +1.2k |
| Odyssean, LLC 0.18% of their portfolio | 23.1k $493.7k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 20.9k $447.1k | Reduced -621 |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 18.9k $404.0k | Reduced -673 |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 18.3k $390.2k | Reduced -42.3k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 17.4k $372.5k | Added +1 |
| MARTINGALE ASSET MANAGEMENT L P 0.01% of their portfolio | 17.0k $363.3k | Reduced -20.4k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 16.7k $355.9k | New |
| UBS Group AG 0.00% of their portfolio | 12.5k $266.6k | Added +9.8k |
| Engineers Gate Manager LP 0.00% of their portfolio | 12.2k $261.3k | New |
| Jump Financial, LLC 0.00% of their portfolio | 11.3k $240.7k | Reduced -3.0k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 11.0k $234.5k | Reduced -8.1k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 10.8k $230.8k | Reduced -257 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 10.7k $229.0k | Unchanged |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 10.7k $228.1k | Reduced -3.6k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 10.3k $220.1k | Unchanged |
| MetLife Investment Management, LLC 0.00% of their portfolio | 10.1k $214.8k | Reduced -293 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 9.8k $210.0k | Reduced -185 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 7.7k $165.4k | Added +170 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.1k $150.6k | Reduced -20.2k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 6.8k $144.9k | Added +636 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 6.6k $140.9k | Unchanged |
| CWM, LLC 0.00% of their portfolio | 6.2k $132.7k | Added +144 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 6.1k $131.1k | Reduced -12.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 5.6k $120.2k | Reduced -6.9k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 5.2k $111.4k | First filing |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 4.5k $97.0k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 3.9k $82.6k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 3.6k $77.8k | Reduced -1.7k |
| BARCLAYS PLC 0.00% of their portfolio | 3.2k $67.6k | Reduced -22.0k |
| FMR LLC 0.00% of their portfolio | 2.5k $53.5k | Added +9 |
| CITIGROUP INC 0.00% of their portfolio | 2.3k $48.9k | Added +794 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.8k $39.3k | Added +1.3k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 1.7k $36.0k | Added +66 |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 1.6k $35.0k | Added +1.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 1.6k $34.5k | Added +1.5k |
| Legal & General Group Plc 0.00% of their portfolio | 1.5k $31.6k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.3k $28.2k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 879 $18.8k | Reduced -120 |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 838 $17.0k | Unchanged |
| Smartleaf Asset Management LLC 0.00% of their portfolio | 828 $17.6k | Added +150 |
| Sterling Capital Management LLC 0.00% of their portfolio | 538 $11.5k | Reduced -398 |
| Versant Capital Management, Inc 0.00% of their portfolio | 504 $10.8k | Added +54 |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 503 $10.5k | New |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 500 $10.7k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 460 $10.0k | Reduced -71 |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 420 $9.0k | Unchanged |
| Capital Advisors, Ltd. LLC 0.00% of their portfolio | 359 $8.0k | Unchanged |
| GAMMA Investing LLC 0.00% of their portfolio | 343 $7.3k | Added +131 |
| HARBOR CAPITAL ADVISORS, INC. 0.00% of their portfolio | 340 $7.0k | Added +214 |
| Essential Partners LLC 0.00% of their portfolio | 328 $7.0k | Reduced -131 |
| SIGNATUREFD, LLC 0.00% of their portfolio | 209 $4.5k | Added +125 |
| Arax Advisory Partners 0.00% of their portfolio | 191 $4.1k | Added +108 |
| Optiver Holding B.V. 0.00% of their portfolio | 186 $4.0k | Added +28 |