Mark J. Grescovich - 04 Mar 2026 Form 4 Insider Report for BANNER CORP (BANR)

Reporting relationship: President and CEO
Issuer ticker: BANR
Reported as of: 04 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Mar 2026, 15:35:15 UTC
Prior SEC filing: 04 Apr 2025
Next SEC filing: 02 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Richard C. Arnold, attorney-in-fact for Mr. Grescovich

Key filing fact

Mark J. Grescovich filed Form 4 for BANNER CORP (BANR) on 05 Mar 2026.

Key facts

This page summarizes Mark J. Grescovich's Form 4 filing for BANNER CORP (BANR).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 05 Mar 2026, 15:35.

Change

Previous filing in this sequence was filed on 04 Apr 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001231641 Primary reporting owner

GRESCOVICH MARK J

Relationship: President and CEO
Address: 10 SOUTH FIRST AVE., WALLA WALLA
Signature: /s/ Richard C. Arnold, attorney-in-fact for Mr. Grescovich
Signature date: 05 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BANR transaction

Common Stock, $0.01 par value per share

Award

Transaction value
Shares: +13,501
Change %: +5.8%
Price: $60.87^*
Shares after: 246,107
Date: 04 Mar 2026
Ownership: Direct
Footnotes: F1, F2

BANR transaction

Common Stock, $0.01 par value per share

Tax liability

Transaction value
Shares: -3,289
Change %: -1.3%
Price: $60.87^*
Shares after: 242,818
Date: 04 Mar 2026
Ownership: Direct
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

This award for 18,753 performance shares was originally reported on April 3, 2023 at the maximum performance criteria. This supplements that filing to note that the actual number of shares that vested based on the performance results as determined by Banner Corporation's Compensation Committee.

Footnote F2

Market price on March 4, 2026.

Footnote F3

Shares relinquished to cover tax obligation on vesting of 13,501 shares of restricted stock pursuant to 2018 Omnibus Incentive Plan.