LEE JOHNNY C 4

What Happened
Johnny C. Lee, President, CEO and a director of RBB Bancorp (RBB), received 1,098 shares on 2026-02-20 through conversion/vesting of a derivative/RSU award. The gross value of the shares at the reported price ($22.20) was $24,376. To satisfy tax withholding, 453 of those shares were surrendered (disposed) valued at $10,057, leaving a net receipt of 645 shares (net value ≈ $14,319).

Key Details

• Transaction date: 2026-02-20; Form 4 filed 2026-02-24 (timely filing).
• Reported prices and values: 1,098 shares @ $22.20 = $24,376 (acquired); 453 shares withheld @ $22.20 = $10,057 (disposed).
• Codes: M = exercise/conversion of derivative (vesting/conversion of RSUs); F = shares disposed to cover tax withholding.
• Net shares added to holdings: 645 shares (1,098 acquired − 453 withheld).
• Shares owned after transaction: not specified in the filing.
• Relevant footnote: these shares relate to the 02/21/2024 RSU grant (vesting schedule noted in footnote F3).

Context
This was not an open-market buy or sale by the CEO but the vesting/conversion of equity awards (RSUs/derivative conversion) with a routine tax-withholding disposition of some shares. Such transactions are common when restricted stock or similar awards vest and do not, by themselves, indicate a change in the insider’s view of the company.