Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

RBB Bancorp

CIK 0001499422RBB· quarter ending 2026-06-30

Shares outstanding

16,915,964

as of 2026-07-31 · 10-Q cover page, filed 2026-08-07

Held by 13F filers

9,821,829

58.1% of shares outstanding

Holders

144

+24 vs 2026-03-31 · 33 new, 9 exited

Value

$268.4M

shares +4.2% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-07, as of 2026-07-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	RBB · NASDAQ	16,915,964	9,821,829	58.1%	144	74930B105

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	74930B105	COM	144	9,821,829	16,915,964	58.1%	$268.4M	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (144 of 144 · 74930B105)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	BlackRock, Inc.	1,292,135	7.64%	$35.4M	+150,787 (+13.2%)
2	DIMENSIONAL FUND ADVISORS LP	902,290	5.33%	$24.7M	+72,076 (+8.7%)
3	VANGUARD CAPITAL MANAGEMENT LLC	641,304	3.79%	$17.6M	-18,721 (-2.8%)
4	AMERICAN CENTURY COMPANIES INC	536,436	3.17%	$14.7M	+68,758 (+14.7%)
5	ACADIAN ASSET MANAGEMENT LLC	400,451	2.37%	$11.0M	+302,866 (+310.4%)
6	GEODE CAPITAL MANAGEMENT, LLC	370,553	2.19%	$10.2M	+23,223 (+6.7%)
7	STATE STREET CORP	337,621	2.00%	$9.3M	+12,799 (+3.9%)
8	Hillsdale Investment Management Inc.	327,169	1.93%	$9.0M	+105,769 (+47.8%)
9	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	223,877	1.32%	$6.1M	+24,142 (+12.1%)
10	MORGAN STANLEY	206,553	1.22%	$5.7M	+73,971 (+55.8%)
11	Qube Research & Technologies Ltd	195,579	1.16%	$5.4M	+136,611 (+231.7%)
12	LSV ASSET MANAGEMENT	190,600	1.13%	$5.2M	+2,200 (+1.2%)
13	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	185,168	1.09%	$5.1M	+1,080 (+0.6%)
14	Rhino Investment Partners, Inc	178,388	1.05%	$4.9M	-160,422 (-47.3%)
15	BRIDGEWAY CAPITAL MANAGEMENT, LLC	172,655	1.02%	$4.7M	+6,732 (+4.1%)
16	ALGERT GLOBAL LLC	156,224	0.92%	$4.3M	NEW
17	RAYMOND JAMES FINANCIAL INC	150,380	0.89%	$4.1M	NEW
18	ALLIANCEBERNSTEIN L.P.	142,884	0.84%	$3.1M	-239,434 (-62.6%)
19	VANGUARD PORTFOLIO MANAGEMENT LLC	136,257	0.81%	$3.7M	+15,311 (+12.7%)
20	NORTHERN TRUST CORP	125,575	0.74%	$3.4M	+9,404 (+8.1%)
21	TWO SIGMA INVESTMENTS, LP	117,871	0.70%	$3.2M	+57,535 (+95.4%)
22	EJF Capital LP	109,258	0.65%	$3.0M	+401 (+0.4%)
23	LOS ANGELES CAPITAL MANAGEMENT LLC	108,171	0.64%	$3.0M	+76,882 (+245.7%)
24	AQR CAPITAL MANAGEMENT LLC	106,302	0.63%	$2.9M	+29,273 (+38.0%)
25	Empowered Funds, LLC	104,534	0.62%	$2.9M	+3,071 (+3.0%)
26	Connor, Clark & Lunn Investment Management Ltd.	103,297	0.61%	$2.8M	+41,159 (+66.2%)
27	Bank of New York Mellon Corp	97,894	0.58%	$2.7M	+8,959 (+10.1%)
28	MARSHALL WACE, LLP	97,845	0.58%	$2.7M	NEW
29	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	96,968	0.57%	$2.7M	+2,284 (+2.4%)
30	Trexquant Investment LP	87,095	0.51%	$2.4M	+16,211 (+22.9%)
31	VANGUARD FIDUCIARY TRUST CO	86,406	0.51%	$2.4M	+3,639 (+4.4%)
32	GOLDMAN SACHS GROUP INC	80,060	0.47%	$2.2M	+16,472 (+25.9%)
33	Quantinno Capital Management LP	75,397	0.45%	$2.1M	+9,253 (+14.0%)
34	Squarepoint Ops LLC	68,007	0.40%	$1.9M	+709 (+1.1%)
35	CITADEL ADVISORS LLC	66,633	0.39%	$1.8M	+22,048 (+49.5%)
36	JACOBS LEVY EQUITY MANAGEMENT, INC	61,514	0.36%	$1.7M	+1,786 (+3.0%)
37	UBS Group AG	56,794	0.34%	$1.6M	+44,319 (+355.3%)
38	KENNEDY CAPITAL MANAGEMENT LLC	54,299	0.32%	$1.5M	-2,229 (-3.9%)
39	BANK OF AMERICA CORP /DE/	52,415	0.31%	$1.4M	+22,781 (+76.9%)
40	Nuveen, LLC	50,795	0.30%	$1.4M	+2,162 (+4.4%)
41	PRUDENTIAL FINANCIAL INC	50,385	0.30%	$1.4M	+39,410 (+359.1%)
42	Russell Investments Group, Ltd.	49,847	0.29%	$1.4M	+40,021 (+407.3%)
43	Integrated Quantitative Investments LLC	48,961	0.29%	$1.3M	NEW
44	FIRST TRUST ADVISORS LP	47,471	0.28%	$1.3M	+1,398 (+3.0%)
45	AMERIPRISE FINANCIAL INC	46,683	0.28%	$1.3M	+10,832 (+30.2%)
46	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	46,609	0.28%	$1.3M	+3,856 (+9.0%)
47	Walleye Capital LLC	45,829	0.27%	$1.3M	NEW
48	Point72 Asset Management, L.P.	43,477	0.26%	$1.2M	NEW
49	JOHN G ULLMAN & ASSOCIATES INC	40,550	0.24%	$1.1M	—
50	MARTINGALE ASSET MANAGEMENT L P	38,900	0.23%	$1.1M	+21,900 (+128.8%)
51	D. E. Shaw & Co., Inc.	37,440	0.22%	$1.0M	+18,534 (+98.0%)
52	Engineers Gate Manager LP	37,214	0.22%	$1.0M	+24,988 (+204.4%)
53	Creative Planning	34,462	0.20%	$945K	NEW
54	GSA CAPITAL PARTNERS LLP	33,854	0.20%	$928K	+1,130 (+3.5%)
55	Invesco Ltd.	32,613	0.19%	$894K	-8,394 (-20.5%)
56	Odyssean, LLC	32,495	0.19%	$891K	+9,394 (+40.7%)
57	Unison Advisors LLC	32,166	0.19%	$882K	+211 (+0.7%)
58	OSAIC HOLDINGS, INC.	30,274	0.18%	$830K	NEW
59	RENAISSANCE TECHNOLOGIES LLC	29,700	0.18%	$814K	NEW
60	MILLENNIUM MANAGEMENT LLC	29,632	0.18%	$812K	+11,371 (+62.3%)
61	Legato Capital Management LLC	28,135	0.17%	$771K	NEW
62	XTX Topco Ltd	27,237	0.16%	$747K	NEW
63	STRS OHIO	26,700	0.16%	$732K	-700 (-2.6%)
64	BAILARD, INC.	21,300	0.13%	$584K	NEW
65	MACKENZIE FINANCIAL CORP	20,546	0.12%	$563K	NEW
66	RHUMBLINE ADVISERS	20,486	0.12%	$562K	-435 (-2.1%)
67	BNP PARIBAS FINANCIAL MARKETS	20,208	0.12%	$554K	+16,568 (+455.2%)
68	LAZARD ASSET MANAGEMENT LLC	18,825	0.11%	$516K	NEW
69	COMMONWEALTH EQUITY SERVICES, LLC	17,433	0.10%	$478K	+1 (+0.0%)
70	DEUTSCHE BANK AG\	15,974	0.09%	$438K	+10,350 (+184.0%)
71	SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC	14,321	0.08%	$393K	NEW
72	WELLS FARGO & COMPANY/MN	13,721	0.08%	$376K	+7,585 (+123.6%)
73	Man Group plc	13,003	0.08%	$356K	NEW
74	PRICE T ROWE ASSOCIATES INC /MD/	12,651	0.07%	$347K	+1,969 (+18.4%)
75	MERCER GLOBAL ADVISORS INC /ADV	11,047	0.07%	$303K	NEW
76	Centiva Capital, LP	11,042	0.07%	$303K	NEW
77	SEI INVESTMENTS CO	11,028	0.07%	$302K	-5,626 (-33.8%)
78	OXFORD ASSET MANAGEMENT LLP	10,889	0.06%	$299K	NEW
79	Sterling Capital Management LLC	10,410	0.06%	$285K	+9,872 (+1834.9%)
80	CITIGROUP INC	10,344	0.06%	$284K	+8,057 (+352.3%)
81	CANADA PENSION PLAN INVESTMENT BOARD	10,300	0.06%	$282K	—
82	MetLife Investment Management, LLC	10,051	0.06%	$276K	—
83	SUSQUEHANNA INTERNATIONAL GROUP, LLP	10,040	0.06%	$275K	NEW
84	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	9,193	0.05%	$252K	+2,600 (+39.4%)
85	IEQ CAPITAL, LLC	8,989	0.05%	$246K	-1,812 (-16.8%)
86	AXQ CAPITAL, LP	8,681	0.05%	$238K	NEW
87	SENTINEL TRUST CO LBA	7,900	0.05%	$217K	NEW
88	JANE STREET GROUP, LLC	7,543	0.04%	$207K	NEW
89	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	7,543	0.04%	$207K	-195 (-2.5%)
90	JPMORGAN CHASE & CO	7,364	0.04%	$201K	+286 (+4.0%)
91	Quadrature Capital Ltd	7,307	0.04%	$200K	NEW
92	Police & Firemen's Retirement System of New Jersey	5,547	0.03%	$152K	+1,684 (+43.6%)
93	Vanguard Global Advisers, LLC	5,211	0.03%	$143K	—
94	State of Tennessee, Department of Treasury	4,615	0.03%	$127K	NEW
95	NEW YORK STATE COMMON RETIREMENT FUND	4,539	0.03%	$124K	—
96	PNC Financial Services Group, Inc.	4,371	0.03%	$120K	-2,410 (-35.5%)
97	FMR LLC	3,797	0.02%	$104K	+1,291 (+51.5%)
98	BARCLAYS PLC	2,134	0.01%	$59K	-1,030 (-32.6%)
99	Legal & General Group Plc	1,665	0.01%	$46K	+188 (+12.7%)
100	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	1,613	0.01%	$44K	—
101	CANADA LIFE ASSURANCE Co	1,586	0.01%	$43K	-120 (-7.0%)
102	Tower Research Capital LLC (TRC)	1,545	0.01%	$42K	-295 (-16.0%)
103	Rockefeller Capital Management L.P.	1,478	0.01%	$41K	-159 (-9.7%)
104	Ameritas Investment Partners, Inc.	1,318	0.01%	$36K	—
105	Arax Advisory Partners	1,042	0.01%	$29K	+851 (+445.5%)
106	Mirae Asset Global Investments Co., Ltd.	1,009	0.01%	$28K	NEW
107	ROYAL BANK OF CANADA	927	0.01%	$26K	+467 (+101.5%)
108	State of Alaska, Department of Revenue	838	0.00%	$22K	—
109	Smartleaf Asset Management LLC	828	0.00%	$23K	—
110	Versant Capital Management, Inc	504	0.00%	$14K	—
111	JONES FINANCIAL COMPANIES LLLP	503	0.00%	$14K	—
112	Federation des caisses Desjardins du Quebec	500	0.00%	$14K	—
113	Pinnacle Wealth Planning Services, Inc.	420	0.00%	$12K	—
114	SIMPLEX TRADING, LLC	386	0.00%	$11K	NEW
115	SIGNATUREFD, LLC	368	0.00%	$10K	+159 (+76.1%)
116	Capital Advisors, Ltd. LLC	359	0.00%	$10K	—
117	GAMMA Investing LLC	343	0.00%	$9K	—
118	HARBOR CAPITAL ADVISORS, INC.	340	0.00%	$9K	—
119	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	226	0.00%	$6K	-653 (-74.3%)
120	Allworth Financial LP	203	0.00%	$6K	+75 (+58.6%)
121	FEDERATED HERMES, INC.	160	0.00%	$4K	NEW
122	Private Wealth Management Group, LLC	155	0.00%	$4K	—
123	EverSource Wealth Advisors, LLC	137	0.00%	$4K	-30 (-18.0%)
124	Essential Partners LLC	102	0.00%	$3K	-226 (-68.9%)
125	Quarry LP	82	0.00%	$2K	NEW
126	PICTON MAHONEY ASSET MANAGEMENT	70	0.00%	$2K	NEW
127	IFP Advisors, Inc	66	0.00%	$2K	+5 (+8.2%)
128	Parallel Advisors, LLC	65	0.00%	$2K	—
129	ROTHSCHILD INVESTMENT LLC	50	0.00%	$1K	+10 (+25.0%)
130	Fortitude Family Office, LLC	43	0.00%	$1K	NEW
131	Optiver Holding B.V.	42	0.00%	$1K	-144 (-77.4%)
132	NISA INVESTMENT ADVISORS, LLC	41	0.00%	$1K	+1 (+2.5%)
133	Farther Finance Advisors, LLC	40	0.00%	$1K	-28 (-41.2%)
134	Kilter Group LLC	37	0.00%	$1K	—
135	Torren Management, LLC	25	0.00%	$696	—
136	True Wealth Design, LLC	22	0.00%	$604	-1 (-4.3%)
137	Covestor Ltd	19	0.00%	$1K	+3 (+18.8%)
138	Cornerstone Planning Group LLC	16	0.00%	$429	-1 (-5.9%)
139	Basecamp Wealth Advisors LLC	10	0.00%	$274	+9 (+900.0%)
140	SJS Investment Consulting Inc.	1	0.00%	$28	NEW
141	SBI Securities Co., Ltd.	1	0.00%	$27	—
142	JPL Wealth Management, LLC	1	0.00%	$28	—
143	HUNTINGTON NATIONAL BANK	1	0.00%	$27	—
144	Caitong International Asset Management Co., Ltd	1	0.00%	$27	NEW

Exited since 2026-03-31 (9 filers; largest 9 shown)

FJ Capital Management LLC	−1,511,408
North Reef Capital Management LP	−64,150
Catalina Capital Group, LLC	−29,605
Jump Financial, LLC	−11,264
FRANKLIN RESOURCES INC	−10,673
CWM, LLC	−6,210
Root Financial Partners, LLC	−71
BARROW HANLEY MEWHINNEY & STRAUSS LLC	−33
MAI Capital Management	−28

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Financial Opportunity Fund LLC	SCHEDULE 13G/A	2026-08-06	2026-06-30	0	0%
Financial Opportunity Long/Short Fund LLC	SCHEDULE 13G/A	2026-08-06	2026-06-30	0	0%
FJ Capital Management LLC	SCHEDULE 13G/A	2026-08-06	2026-06-30	0	0%
Martin Friedman	SCHEDULE 13G/A	2026-08-06	2026-06-30	0	0%
Dimensional Fund Advisors LP	SCHEDULE 13G	2026-07-14	2026-06-30	902,290	5.3%
The Vanguard Group	SCHEDULE 13G/A	2026-03-27	2026-03-13	0	0%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.