RBB Bancorp director Christopher Lin to retire

RBB Bancorp announced that Dr. Christopher Lin, Ph.D., a current member of its Board of Directors and the Board of Royal Business Bank, will retire effective as of the Company’s 2026 Annual Meeting of Shareholders and will not stand for re-election.

Rhea-AI Filing Summary

RBB Bancorp announced that Dr. Christopher Lin, Ph.D., a current member of its Board of Directors and the Board of Royal Business Bank, will retire effective as of the Company’s 2026 Annual Meeting of Shareholders and will not stand for re-election.

Dr. Lin serves on the Audit Committee, Directors Loan Committee and Community Reinvestment Act Committee, and will leave these roles when he retires from the Board. The company states that his decision to retire did not involve any disagreement with management, the Board or the bank board regarding operations, policies or practices.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Key Terms

Emerging growth company, Audit Committee, Community Reinvestment Act Committee, Annual Meeting of Shareholders

4 terms

Emerging growth company regulatory

"405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934... Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Audit Committee financial

"Dr. Lin currently serves as a member of the Board’s Audit Committee, Directors Loan Committee"

A company's audit committee is a small group of board members who act like independent inspectors for the firm's finances, overseeing how financial reports are prepared, monitoring internal controls, and managing the relationship with external auditors. Investors care because a strong audit committee reduces the risk of accounting errors, fraud, or misleading statements, making financial statements more trustworthy and helping protect shareholder value.

Community Reinvestment Act Committee regulatory

"Directors Loan Committee and Community Reinvestment Act Committee, and will retire from those roles"

Annual Meeting of Shareholders financial

"effective as of the Company’s 2026 Annual Meeting of Shareholders (the “Annual Meeting”)"

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What board change did RBB (RBB Bancorp) disclose in this 8-K?

RBB Bancorp disclosed that director Dr. Christopher Lin, Ph.D., will retire from its Board and the Royal Business Bank board at the 2026 Annual Meeting, and will not stand for re-election, marking an upcoming change in the company’s board composition.

When will Dr. Christopher Lin’s retirement from RBB Bancorp’s board become effective?

Dr. Christopher Lin’s retirement will become effective as of RBB Bancorp’s 2026 Annual Meeting of Shareholders. At that time, he will step down from both the RBB Bancorp Board and the Royal Business Bank board and will not stand for re-election.

Which committees will Dr. Christopher Lin leave at RBB Bancorp?

Dr. Christopher Lin will retire from the Audit Committee, the Directors Loan Committee and the Community Reinvestment Act Committee. His committee departures will occur when he retires from the Board at the Company’s 2026 Annual Meeting of Shareholders, consolidating all changes into a single transition.

Did Dr. Christopher Lin’s retirement involve any disagreement with RBB management or the board?

RBB Bancorp states that Dr. Christopher Lin’s decision to retire did not involve any disagreement with company management, the RBB Bancorp Board or the Royal Business Bank board on matters related to operations, policies or practices, indicating a voluntary and non-contentious transition.

What roles did Dr. Christopher Lin hold at RBB Bancorp and Royal Business Bank?

Dr. Christopher Lin served as a member of RBB Bancorp’s Board of Directors and the Royal Business Bank board, and sat on the Audit Committee, Directors Loan Committee and Community Reinvestment Act Committee, giving him oversight responsibilities across financial reporting, lending and community reinvestment areas.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/06/2026 - 04:19 PM EDT Learn about SEC filing dates

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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 6, 2026 (April 1, 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
(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))

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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 1, 2026, Dr. Christopher Lin, Ph.D, a current member of the Board of Directors (the “Board”) of RBB Bancorp (the “Company”) and the Board of Directors (the “Bank Board”) of Royal Business Bank, advised the Board Chair that he will be retiring from the Board and the Bank Board effective as of the Company’s 2026 Annual Meeting of Shareholders (the “Annual Meeting”), and as such, will not stand for re-election as a member of the Board at the Annual Meeting. Dr. Lin currently serves as a member of the Board’s Audit Committee, Directors Loan Committee and Community Reinvestment Act Committee, and will retire from those roles when he retires from the Board. Dr. Lin’s decision to retire did not involve any disagreement with Company management, the Board or the Bank Board on any matter relating to the Company’s operations, policies or practices.

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)
Date: April 6, 2026	By:		/s/ Lynn Hopkins
			Lynn Hopkins
			Chief Financial Officer

Filing Exhibits & Attachments

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Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.5 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 11.5 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 15.5 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 11.7 KB