Liu Vincent 4

What Happened

• Vincent Liu, Executive Vice President of RBB Bancorp (RBB), had restricted stock units (RSUs) vest on 2026-03-20. The vesting resulted in the conversion/acquisition of 1,835 common shares valued at $20.43 each (total value $37,489).
• To satisfy tax withholding obligations, 659 of those shares were disposed (withheld) at $20.43 per share, totaling $13,463. The net economic value retained from the vesting was the remaining shares (1,835 issued less 659 withheld).

Key Details

• Transaction date: 2026-03-20; Filing date: 2026-03-24 (filed within the Form 4 reporting window).
• Acquired: 1,835 shares at $20.43 (reported as exercise/conversion of derivative, code M; also shown as derivative conversion at $0.00 reflecting RSU settlement).
• Disposed (tax withholding): 659 shares at $20.43, total $13,463 (code F).
• Net shares retained after withholding: 1,176 shares (1,835 − 659). The filing does not list total shares owned after the report beyond this vesting event.
• Footnotes: RSUs vest in three equal annual installments (grants dated 02/21/2024 and 03/20/2024 referenced). The filing clarifies RSU grants will be settled in common stock.
• Transaction codes explained: M = exercise/conversion of derivative (RSU settlement here); F = shares withheld for tax/payment.

Context

• This was a routine vesting and settlement of RSUs, not an open-market buy or sell for cash; withholding shares to cover taxes is standard practice and does not necessarily indicate a view on the stock.
• The Form 4 was filed within the normal reporting window, and the disclosure was updated to clarify that RSUs are settled in common stock.