SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Huang Tsu Te (Last) (First) (Middle) 660 S. FIGUEROA STREET SUITE 1888 (Street) LOS ANGELES CA 90017 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol RBB Bancorp [ RBB ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) EVP
	3. Date of Earliest Transaction (Month/Day/Year) 03/09/2018
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, No Par Value	03/09/2018	03/09/2018	M		21,525	A	$9.2915	236,776	D
Common Stock, No Par Value	03/09/2018	03/09/2018	S		6,746	D	$26.466	230,030	D
Common Stock, No Par Value	03/09/2018	03/09/2018	S		5,000	D	$26.458	225,030	D
Common Stock, No Par Value	03/09/2018	03/09/2018	S		5,500	D	$26.452	219,530	D
Common Stock, No Par Value	03/09/2018	03/09/2018	S		4,279	D	$26.457	215,251	D
Common Stock, No Par Value	03/09/2018	03/09/2018	S		221	D	$26.457	215,030	D
Common Stock, No Par Value	03/16/2018	03/16/2018	M		6,458	A	$9.2915	221,488	D
Common Stock, No Par Value	03/16/2018	03/16/2018	M		6,763	A	$11.1498	228,251	D
Common Stock, No Par Value	03/16/2018	03/16/2018	S		6,237	D	$26.452	222,014	D
Common Stock, No Par Value	03/16/2018	03/16/2018	S		6,763	D	$26.452	215,251	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option (right to buy)	$9.2915	03/09/2018	03/09/2018	M			21,525	(1)	04/21/2019	Common Stock	21,525	$9.2915	0	D
Option (right to buy)	$9.2915	03/16/2018	03/16/2018	M			6,458	(2)	01/01/2022	Common Stock	6,458	$9.2915	0	D
Option (right to buy)	$11.1498	03/16/2018	03/16/2018	M			6,763	(3)	01/01/2023	Common Stock	10,763	$11.1498	4,000	D

Explanation of Responses:

1. These options vest in three equal annual installments beginning one year after the 04/21/2009 date of grant.

2. These options vest in three equal annual installments beginning one year after the 01/01/2012 date of grant.

3. These options vest in three equal annual installments beginning one year after the 01/01/2013 date of grant.

Remarks:

	Tsu Te Huang	03/19/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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