Kao James 4

4 · RBB Bancorp · Filed May 26, 2026

AI-generated summary of this filing

Updated May 27, 2026

RBB Bancorp (RBB) Director James Kao Receives RSU Grant, Converts to Shares

What Happened

James Kao, a director of RBB Bancorp (RBB), received a grant of 2,662 restricted stock units (RSUs) on May 21, 2026. The filing shows 2,662 shares acquired at $0.00 (award).
On the same date, 1,962 RSUs vested immediately and were converted into 1,962 shares (reported as exercise/conversion). The filing also records conversion/acquisition of 700 shares and matching dispositions of 1,962 and 700 shares (all at $0.00). Total cash consideration reported for these transactions is $0.00.
These transactions are RSU awards and conversions (not open-market purchases or sales of previously held shares). Awards like these are typically compensation-related rather than directional investment buys or sells.

Key Details

Transaction date: May 21, 2026. Reported codes: A = award/grant; M = exercise/conversion of derivative.
Prices: all entries reported at $0.00 per share (standard for RSU grants/conversions).
Shares involved: 2,662 RSUs granted; 1,962 vested and converted immediately; 700 subject to future vesting (one-year anniversary per footnote).
Footnotes from the filing:
- RSUs convert one-for-one into common stock.
- On May 21, 2025, Kao was previously granted 5,242 RSUs (4,542 immediately vested; 700 vest on the one-year anniversary).
- On May 21, 2026, Kao was granted 2,662 RSUs: 1,962 vested immediately and 700 will vest on May 21, 2027.
Shares owned after the reported transactions: not specified in the provided filing details.
Filing timeliness: the provided information does not indicate that the Form 4 was late.

Context

RSU awards and subsequent conversions are common executive/director compensation. The filing shows conversions and some dispositions of converted shares; the form does not state the reason for the dispositions. Such dispositions are often for tax withholding or sell-to-cover, but the filing itself does not specify the purpose.
Because these were awards/vestings (not purchases), they mainly reflect compensation vesting rather than an independent insider market buy or sell.

Form 4

Period: 2026-05-21

Director

Transactions

Exercise/Conversion
Common Stock, No Par Value
2026-05-21+700→ 564,762 total
Exercise/Conversion
Common Stock, No Par Value
2026-05-21+1,962→ 566,724 total
Exercise/Conversion
Restricted Stock Units
[F1][F2]
2026-05-21−700→ 0 total
→ Common Stock (700 underlying)
Award
Restricted Stock Units
[F1][F3]
2026-05-21+2,662→ 2,662 total
→ Common Stock (2,662 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-05-21−1,962→ 700 total
→ Common Stock (1,962 underlying)

Footnotes (3)

[F1]Restricted stock units convert into common stock on a one-for-one basis.
[F2]On May 21, 2025, the reporting person was granted 5,242 restricted stock units: 4,542 immediately vested and 700 vested on the one year anniversary of the grant date.
[F3]On May 21, 2026, the reporting person was granted 2,662 restricted stock units: 1,962 vested immediately and 700 will vest on the one year anniversary of the grant date.

Signature

/s/ James Kao|2026-05-26

1 file