# EDGAR Filing Document

**Accession Number:** 0001028918
**File Stem:** 0001028918-25-000097
**Filing Date:** 2025-8
**Character Count:** 7990
**Document Hash:** b18c350e264e76726b060fd9a4064a49
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001028918-25-000097.hdr.sgml**: 20250827

**ACCESSION NUMBER**: 0001028918-25-000097

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250825

**FILED AS OF DATE**: 20250827

**DATE AS OF CHANGE**: 20250827

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Nicolas Ronald J. Jr.
- **CENTRAL INDEX KEY:** 0001406485

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-22193
- **FILM NUMBER:** 251265583

**MAIL ADDRESS:**
- **STREET 1:** 2727 E. IMPERIAL HIGHWAY
- **CITY:** BREA
- **STATE:** CA
- **ZIP:** 92821
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PACIFIC PREMIER BANCORP INC
- **CENTRAL INDEX KEY:** 0001028918
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 330743196
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 17901 VON KARMAN AVE
- **STREET 2:** SUITE 1200
- **CITY:** IRVINE
- **STATE:** CA
- **ZIP:** 92614
- **BUSINESS PHONE:** 949-864-8000

**MAIL ADDRESS:**
- **STREET 1:** 17901 VON KARMAN AVE
- **STREET 2:** SUITE 1200
- **CITY:** IRVINE
- **STATE:** CA
- **ZIP:** 92614

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Nicolas Ronald J. Jr.<br><sub>(Last) (First) (Middle)</sub><br>17901 VON KARMAN AVE., SUITE 1200<br><sub>(Street)</sub><br>IRVINE, CA 92614<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-08-25 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SEVP & CFO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>PACIFIC PREMIER BANCORP INC [ PPBI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| PPBI Common Stock | 2025-08-25 |  | M |  | 96821<sup>(1)</sup> | A | <sup>(1)</sup> | 162513 | D |  |
| PPBI Common Stock | 2025-08-25 |  | M |  | 8236 | A | <sup>(2)</sup> | 170749 | D |  |
| PPBI Common Stock | 2025-08-27 |  | G<sup>(3)</sup> |  | 170749 | D | $0 | 0 | D |  |
| PPBI Common Stock | 2025-08-27 |  | G<sup>(3)</sup> |  | 170749 | A | $0 | 306599 | I | The Nicolas Living Trust<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| PPBI Restricted Stock Unit | <sup>(5)</sup> | 2025-08-25 |  | M |  |  | 30108 | <sup>(5)</sup> | <sup>(6)</sup> | PPBI Common Stock | 30108 | $0 | 0 | D |  |
| PPBI Restricted Stock Unit | <sup>(5)</sup> | 2025-08-25 |  | M |  |  | 33171 | <sup>(5)</sup> | <sup>(6)</sup> | PPBI Common Stock | 33171 | $0 | 0 | D |  |
| PPBI Restricted Stock Unit | <sup>(5)</sup> | 2025-08-25 |  | M |  |  | 33542 | <sup>(5)</sup> | <sup>(6)</sup> | PPBI Common Stock | 33542 | $0 | 0 | D |  |
| Dividend Equivalent Rights | <sup>(2)</sup> | 2025-08-25 |  | M |  |  | 8236 | <sup>(2)</sup> | <sup>(6)</sup> | PPBI Common Stock | 8236 | <sup>(2)</sup> | 0 | D |  |

---

### Footnotes:

(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.

**Signature:** /s/ Ronald J. Nicolas Jr.  
**Date:** 2025-08-27

### Remarks:

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**