InsiderTrades

Form 4 for RBB RBB Bancorp

Accepted 2026-08-21 17:47:18 ET · period of report 2026-08-19 · accession 0001437749-26-028761 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-08-21 17:47 2026-08-19 RBB Hanson Diana CAO M - OptEx $0.00 +767 1,259 +156% $0
D 2026-08-21 17:47 2026-08-19 RBB Hanson Diana CAO F - Tax $26.40 -276 983 -22% -$7,286
D 2026-08-21 17:47 2026-08-19 RBB Hanson Diana CAO M - OptEx $0.00 -767 1,533 -33% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, No Par Value 2026-08-19 M A 767 $0.00 1,259 D — —
2 Common Common Stock, No Par Value 2026-08-19 F D 276 $26.40 983 D — —
3 Derivative Restricted Stock Units 2026-08-19 M D 767 $0.00 1,533 D — · — to — 2,300 Common Stock (F4) Restricted stock units convert into common stock on a one-for-one basis. (F2) These remaining restricted stock units vest in two equal annual installments on 08/19/2027 and 08/19/2028. (F1) There will be no expiration date once restricted stock units vest.