HOPKINS LYNN M 4

What Happened
Lynn M. Hopkins, EVP and CFO of RBB Bancorp (RBB), had 1,878 restricted stock units (RSUs convert/vest) on 2026-03-20. The vesting was reported as an exercise/conversion of a derivative (code M) with a gross value of $38,368 based on a $20.43 share price. To satisfy tax withholding obligations (code F), 674 of those shares were surrendered (valued at $13,770), leaving Hopkins with a net issuance of about 1,204 shares (net value ≈ $24,598).

Key Details

• Transaction date: 2026-03-20; Form 4 filed: 2026-03-24 (timely filing).
• Reported transactions: M = conversion/vesting of 1,878 RSUs @ $20.43 (gross $38,368); F = 674 shares withheld for taxes @ $20.43 (value $13,770). An additional M line shows conversion/disposition of the derivative instrument (administrative reporting of the RSU conversion).
• Net shares received: ~1,204 shares (1,878 vested − 674 withheld). Net value ≈ $24,598.
• Shares owned after transaction: not specified in the filing provided.
• Relevant footnote: These shares relate to the 03/20/2024 RSU grant, which vests per the award’s schedule (vesting in three equal annual installments beginning one year after 03/20/2024). Once RSUs vest they have no expiration.
• Transaction codes explained: M = exercise/conversion of derivative (RSU vesting here); F = payment of exercise price or tax withholding (shares surrendered to cover taxes).

Context
This was a routine equity compensation vesting event (RSUs converting into common shares) rather than an open-market buy or sale. The partial disposal of shares was solely to cover tax withholding and is common in executive compensation settlements; it does not necessarily indicate any change in the insider’s view of the company.