[Form 4] Pacific Premier Bancorp Inc Insider Trading Activity

Rhea-AI Filing Summary

Director Jaynie M. Studenmund reported two disposals of Pacific Premier Bancorp, Inc. (PPBI) common stock on 08/31/2025. She disposed of 17,108 shares (direct) and 4,200 shares (indirectly held via a Morgan Stanley IRA), leaving 0 shares beneficially owned following the transactions. The disposals occurred in connection with an Agreement and Plan of Merger under which PPBI was merged into Columbia Banking System, Inc. at the Effective Time; each PPBI share was converted into the right to receive 0.9150 shares of Columbia common stock, with cash paid in lieu of fractional shares.

Positive

• Merger conversion disclosed: The filing clearly states the 0.9150 Columbia-per-PPBI share conversion ratio
• Full disclosure by insider: Director Jaynie M. Studenmund reported disposals and remaining beneficial ownership of 0 shares

Negative

• Insider no longer holds PPBI shares following the merger-related conversions
• Indirect holding disposed (4,200 shares held via Morgan Stanley IRA) which may affect governance voting by this director for PPBI-specific matters

Insights

Securities Analyst

TL;DR: Insider disposals reflect merger conversion; holdings reduced to zero after conversion into Columbia shares.

The Form 4 documents that Director Jaynie Studenmund disposed of 17,108 directly held PPBI shares and 4,200 shares held indirectly via a Morgan Stanley IRA on 08/31/2025. The filing explicitly ties these disposals to the Merger Agreement that effectuated PPBI's merger into Columbia Banking System, Inc., and specifies the fixed conversion ratio of 0.9150 Columbia shares per PPBI share, with cash for fractional shares. For investors, this is a routine Section 16 disclosure of an insider's share conversion and resulting loss of beneficial ownership rather than a market trading decision.

Corporate Governance Expert

TL;DR: Disclosure is complete for the reported transactions and links them to the merger; no additional insider holdings remain.

The filing shows the reporting person now reports 0 beneficial shares following the reported disposals and clearly states the legal basis: conversion under the Merger Agreement effective 08/31/2025. The Form 4 is signed and dated 09/03/2025, satisfying Section 16 disclosure requirements. The transaction codes and the explanatory note indicate these were merger-related conversions rather than open-market sales.

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
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X

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^*

STUDENMUND JAYNIE M

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/31/2025

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	08/31/2025		D		17,108	D	(1)	0	D
PPBI Common Stock	08/31/2025		D		4,200	D	(1)	0	I	By Morgan Stanley IRA

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

Explanation of Responses:

1. Disposed of in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated 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 was merged with and into Columbia on August 31, 2025 (the "Effective Time"). Pursuant to the Merger Agreement, as of the Effective Time, each share of the Issuer's common stock outstanding immediately prior to the Effective Time was converted into the right to receive 0.9150 of a share of Columbia common stock, with cash (without interest) paid in lieu of fractional shares, if applicable.

Remarks:

	/s/ Jaynie M. Studenmund	09/03/2025
	** 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).
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.

FAQ

What did Jaynie M. Studenmund report on Form 4 for PPBI?

She reported disposition of 17,108 directly held PPBI shares and 4,200 indirectly held shares on 08/31/2025, leaving 0 shares beneficially owned.

Why were the PPBI shares disposed on 08/31/2025?

The dispositions were made in connection with the Agreement and Plan of Merger under which PPBI was merged into Columbia Banking System, Inc., effective 08/31/2025.

What conversion ratio was used for PPBI shares in the merger?

Each PPBI share was converted into the right to receive 0.9150 shares of Columbia common stock, with cash paid in lieu of fractional shares.

Does the Form 4 show any remaining PPBI ownership by the reporting person?

No; the Form 4 reports 0 shares beneficially owned by the reporting person following the reported transactions.

When was the Form 4 signed by the reporting person?

The Form 4 is signed by /s/ Jaynie M. Studenmund and dated 09/03/2025.