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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).
	Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person* Nicolas Ronald J. Jr. (Last) (First) (Middle) 17901 VON KARMAN AVE., SUITE 1200 (Street) IRVINE CA 92614 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol PACIFIC PREMIER BANCORP INC [ PPBI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) SEVP & CFO
	3. Date of Earliest Transaction (Month/Day/Year) 08/25/2025
	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
PPBI Common Stock	08/25/2025		M		96,821(1)	A	(1)	162,513	D
PPBI Common Stock	08/25/2025		M		8,236	A	(2)	170,749	D
PPBI Common Stock	08/27/2025		G(3)		170,749	D	$0	0	D
PPBI Common Stock	08/27/2025		G(3)		170,749	A	$0	306,599	I	The Nicolas Living Trust(4)

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
PPBI Restricted Stock Unit	(5)	08/25/2025		M			30,108	(5)	(6)	PPBI Common Stock	30,108	$0	0	D
PPBI Restricted Stock Unit	(5)	08/25/2025		M			33,171	(5)	(6)	PPBI Common Stock	33,171	$0	0	D
PPBI Restricted Stock Unit	(5)	08/25/2025		M			33,542	(5)	(6)	PPBI Common Stock	33,542	$0	0	D
Dividend Equivalent Rights	(2)	08/25/2025		M			8,236	(2)	(6)	PPBI Common Stock	8,236	(2)	0	D

Explanation of Responses:

1. Represents the acquisition of 96,821 shares of common stock underlying Restricted Stock Units that were accelerated and fully vested in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated as of April 23, 2025, by and among Columbia Banking System, Inc. ("Columbia"), Pacific Premier Bancorp, Inc. (the "Issuer") and Balboa Merger Sub, Inc., pursuant to which the Issuer plans to merge with and into Columbia on or about September 1, 2025.

2. Each dividend equivalent right is the economic equivalent of one share of common stock. Dividend equivalent rights accrue on the reporting person's Restricted Stock Units and become vested proportionately with the Restricted Stock Units.

3. On August 27, 2025, the reporting person transferred 170,749 directly owned shares of Issuer common stock to The Nicolas Living Trust under agreement date 8/8/2006 (the "Trust"), Ronald J. Nicolas, Jr., Co-Trustee. The reporting person shares voting and dispositive control over shares held by the Trust.

4. These shares are held by the Trust, Ronald J. Nicolas, Jr., Co-Trustee. The reporting person shares voting and dispositive control over shares held by the Trust.

5. Each Restricted Stock Unit represents the right to receive one share of common stock. Performance metrics, terms and/or conditions to which these Restricted Stock Units were originally subject were deemed, pursuant to the Merger Agreement, to have been achieved or satisfied, as applicable, at the target levels.

6. Not applicable.

Remarks:

	/s/ Ronald J. Nicolas Jr.	08/27/2025
	** 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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