UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): ~~April~~May 2022, 2026 (May 21, 2026)

RBB BANCORP

(Exact name of Registrant as Specified in Its Charter)

California	001-38149	27-2776416
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)
1055 Wilshire Blvd., 12th floor, Los Angeles, California		90017
1055 Wilshire Blvd., 12th Floor, Los Angeles, California		90017
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (213) 627-9888

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12 (b) of the Act:

Title of each class		Trading Symbol(s)		Name of exchange on which registered
Common Stock, No Par Value		RBB		NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 25.0207 Submission ~~Results~~ of ~~Operations~~Matters ~~and~~to ~~Financial~~a ~~Condition~~Vote of Security Holders.

On ~~April~~May 2021, 2026, RBB Bancorp (the “Company”) ~~issued~~held aits ~~press release setting forth the financial results for the quarter ended March 31,~~ 2026~~, and information relating to the Company’s~~ ~~quarterly~~Annual ~~conference~~Meeting ~~call and webcast. A copy~~ of ~~this~~Shareholders ~~press~~(the ~~release~~“Annual ~~is attached hereto as Exhibit 99~~Meeting”).~~1 and is incorporated by reference herein.~~

~~The~~At ~~information furnished under Item 2.02 and Exhibit 99.1 of Item 9.01 of this Current Report on Form 8-K shall not be deemed “filed” for~~ the ~~purposes~~Annual ~~of Section 18 of the Securities Exchange Act of 1934~~Meeting, ~~as amended (~~the ~~“Exchange~~shareholders ~~Act”), or otherwise subject to the liabilities~~ of ~~such Section, nor shall such information be deemed incorporated by reference into any registration statement or other filings of~~ the Company ~~under the Securities Act of 1933, as amended (the “Securities Act”), except as shall be expressly set for by specific reference in such filing.~~:

~~Item~~● 7Elected Robert M.~~01 Regulation~~ FDFranko, ~~Disclosure~~Christina Kao, Dr. James Kao, Johnny Lee, Joyce Wong Lee, David R. Morris, Geraldine Pannu, Scott Polakoff, and Frank Wong to the board of directors of the Company (the “Board”);

On● ~~April 21~~Approved, ~~2026,~~ ~~the~~on ~~Company will hold~~ a ~~conference call to discuss its financial results for the quarter ended March 31~~non-binding, ~~2026,~~advisory ~~and other matters relating to the Company. The Company has also made available on its website~~basis, ~~www.royalbusinessbankusa.com, presentation materials containing certain historical and forward-looking information relating to~~ the ~~Company~~compensation ~~(the “Presentation Materials”). The Presentation Materials are furnished as Exhibit 99.2 hereto and are incorporated by reference herein. All information in Exhibit 99.2 is presented as~~ of the ~~particular date or dates referenced therein, and the~~ Company's ~~does~~named ~~not~~executive ~~undertake~~officers; ~~any obligation to,~~ and ~~disclaims any duty to, update any of the information provided.~~

~~The~~● ~~information~~Ratified ~~furnished~~the ~~under Item~~appointment ~~7.01 and Item 9.01~~ of ~~this~~Crowe ~~Current~~LLP ~~Report~~as onthe ~~Form~~Company’s ~~8-K (including~~independent ~~Exhibit~~auditor ~~99.2) shall not be deemed “filed”~~ for ~~purposes of Section 18 of~~ the ~~Exchange~~fiscal ~~Act,~~year orending ~~otherwise~~December ~~subject to the liabilities of such Section~~31, nor shall such information be deemed incorporated by reference into any registration statement or other filings of the Company under the Securities Act, except as otherwise expressly stated in such filing2026.

~~Item~~On 8March 24, 2026, the record date for the Annual Meeting, there were 17,074,159 shares of Company common stock issued, outstanding and entitled to vote.01 ~~Other~~Shareholders ~~Events~~holding 11,882,478 shares of Company common stock participated in the Annual Meeting, in person, by webcast, telephonically or by proxy. The results of the matters voted upon at the 2026 Annual Meeting were as follows:

OnProposal April 20, 2026, RBB Bancorp announced that its Board of Directors declared a cash dividend of $0.16 per share of its common stock, payable on May 15, 2026, to common shareholders of record as of April 30, 2026. A copy of the press release announcing the cash dividend described in this Item 8.01 is attached as Exhibit 99.1 ~~hereto~~: ~~and incorporated by reference herein. The information contained in Exhibit 99.1~~Nine ~~shall not be deemed “filed” for the purposes of Section 18 of the Exchange~~(9) ~~Act,~~nominees orwere ~~otherwise~~elected ~~subject~~ to the ~~liabilities~~Board ofwith ~~such Section, nor shall such information and Exhibit be deemed incorporated by reference into any registration statement or other filings of~~ the ~~Company~~following ~~under~~vote ~~the Securities Act, except as shall be expressly set forth by specific reference in such filing.~~counts:

Item 9.01 Financial Statements and Exhibits.

	FOR	WITHHELD	BROKER NON-VOTES
Robert M. Franko	10,155,280	35,162	1,692,036
Christina Kao	10,061,397	129,045	1,692,036
Dr. James W. Kao	10,165,335	25,107	1,692,036
Johnny Lee	10,178,177	12,265	1,692,036
Joyce Wong Lee	10,166,257	24,185	1,692,036
David R. Morris	9,455,919	734,523	1,692,036
Geraldine Pannu	10,147,941	42,501	1,692,036
Scott Polakoff	9,294,784	895,658	1,692,036
Frank Wong	10,155,109	35,333	1,692,036

(d)		Exhibits.
99.1		Press Release, dated April 20, 2026, announcing the financial results of RBB Bancorp for the quarter March 31, 2026 and declaration of a quarterly cash dividend of $0.16 per common share
99.2		Presentation Materials
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

Proposal 2: The compensation of the Company’s named executive officers was approved, on a non-binding advisory basis, having received the following votes:

FOR	AGAINST	ABSTAIN	BROKER NON-VOTES
9,961,044	227,006	2,392	1,692,036

Proposal 3: The appointment of Crowe LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified, having received the following votes:

FOR	AGAINST	ABSTAIN
11,881,286	179	1,013

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	~~RBB BANCORP (Registrant)~~	RBB BANCORP (Registrant)
Date: April 20, 2026	By:		/s/ Lynn Hopkins
Date: May 22, 2026		By:	/s/ Lynn M. Hopkins
			Lynn Hopkins
			Lynn M. Hopkins
			Chief Financial Officer
			EVP and Chief Financial Officer

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