RBB Bancorp RBB Institutional Ownership

NASDAQ RBB

$26.38 -0.19 (-0.71%)

As of: Sep 9, 2026 · 3:59 PM EDT

Institutions by Trading Activity

143 Institutions

Increased 99 69.2%

Unchanged 22 15.4%

Reduced 22 15.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

57.38%

▲+2.40 pp QoQ

Shares Held by Institutions

9.76Mn

of 17.01Mn outstanding

▲+26.17% QoQ

Shares Outstanding

17.01Mn

7.25Mn held outside 13F filers

Institutional Investors

143

filed 13F for Jun 2026

▲+24 vs prior quarter

Net Shares Added (QoQ)

+2.02Mn

accumulated since last quarter

Value of Holdings

$264.23Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

RBB Bancorp (NASDAQ:RBB) showed up in the 13F filings of 143 institutional investors as of June 2026.

These investors held 57.4% of outstanding shares in June 2026, up from 55.0% in March 2026.
They increased total shares held in RBB Bancorp by 26.17% from last quarter, and the number of investors in RBB increased 55.43% annually.
Of these 143 funds, 99 grew their exposure to RBB Bancorp, 22 cut back, and 22 maintained positions.
Altogether, these fund groups held 9.76Mn shares in RBB by June 2026, up by 2.02Mn shares quarter on quarter, and up 1.17Mn shares year over year.
BlackRock, Inc. is the top holder of RBB Bancorp as of June 30, 2026, with 1.29Mn shares representing 7.6% of outstanding stock.
The biggest buyers of RBB Bancorp for the quarter ending June 2026 included ACADIAN ASSET MANAGEMENT LLC (302.87K), ALGERT GLOBAL LLC (156.22K), BlackRock, Inc. (150.79K), Raymond James Financial Inc (150.38K), Qube Research & Technologies Ltd (136.61K).
Top sellers of RBB stock for the quarter ending June 2026 included ALLIANCEBERNSTEIN L.P. (239.43K), Rhino Investment Partners, Inc (160.42K), VANGUARD CAPITAL MANAGEMENT LLC (18.72K), Invesco Ltd. (8.39K), Sei Investments Co (5.63K).
According to Business Quant data, leading holders of RBB for June 2026 are BlackRock, Inc. (1.29Mn), DIMENSIONAL FUND ADVISORS LP (902.29K), VANGUARD CAPITAL MANAGEMENT LLC (641.3K), AMERICAN CENTURY COMPANIES INC (536.44K), ACADIAN ASSET MANAGEMENT LLC (400.45K), GEODE CAPITAL MANAGEMENT, LLC (370.55K), State Street Corp (337.62K), Hillsdale Investment Management Inc. (327.17K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (223.88K), Morgan Stanley (206.55K).

Form 13F Holdings

143 Institutional Holders

Report period 30 Jun, 2026

Total shares held 9.76Mn

Of outstanding 57.38%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	1,292,135	7.60%	▲150,787	+13.21%	$35.42Mn
2	DIMENSIONAL FUND ADVISORS LP	0000354204	902,290	5.30%	▲72,076	+8.68%	$24.74Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	641,304	3.77%	▼18,721	-2.84%	$17.58Mn
4	AMERICAN CENTURY COMPANIES INC	0000748054	536,436	3.15%	▲68,758	+14.70%	$14.71Mn
5	ACADIAN ASSET MANAGEMENT LLC	0000916542	400,451	2.35%	▲302,866	+310.36%	$10.97K
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	370,553	2.18%	▲23,223	+6.69%	$10.16Mn
7	State Street Corp	0000093751	337,621	1.98%	▲12,799	+3.94%	$9.26Mn
8	Hillsdale Investment Management Inc.	0001368465	327,169	1.92%	▲105,769	+47.77%	$8.97Mn
9	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	223,877	1.32%	▲24,142	+12.09%	$6.14Mn
10	Morgan Stanley	0000895421	206,553	1.21%	▲73,971	+55.79%	$5.66Mn
11	Qube Research & Technologies Ltd	0001729829	195,579	1.15%	▲136,611	+231.67%	$5.36Mn
12	LSV ASSET MANAGEMENT	0001050470	190,600	1.12%	▲2,200	+1.17%	$5.23K
13	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	0001164833	185,168	1.09%	▲1,080	+0.59%	$5.08Mn
14	Rhino Investment Partners, Inc	0001828776	178,388	1.05%	▼160,422	-47.35%	$4.89Mn
15	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	172,655	1.01%	▲6,732	+4.06%	$4.73Mn
16	ALGERT GLOBAL LLC	0001275218	156,224	0.92%	▲156,224	0.00%	$4.28Mn
17	Raymond James Financial Inc	0000720005	150,380	0.88%	▲150,380	0.00%	$4.12Mn
18	ALLIANCEBERNSTEIN L.P.	0001109448	142,884	0.84%	▼239,434	-62.63%	$3.05Mn
19	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	136,257	0.80%	▲15,311	+12.66%	$3.74Mn
20	Northern Trust Corp	0000073124	125,575	0.74%	▲9,404	+8.09%	$3.44Mn

Showing 1 to 20 of 143 holders