John F. Schultz - 14 May 2026 Form 4 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Reporting relationship: Director
Issuer ticker: COLB
Reported as of: 14 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 May 2026, 17:13:25 UTC
Prior SEC filing: 17 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Andrea M. Newburn, Attorney-in-fact

Key filing fact

John F. Schultz filed Form 4 for COLUMBIA BANKING SYSTEM, INC. (COLB) on 18 May 2026.

Key facts

This page summarizes John F. Schultz's Form 4 filing for COLUMBIA BANKING SYSTEM, INC. (COLB).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 18 May 2026, 17:13.

Change

Previous filing in this sequence was filed on 17 Dec 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 0001548933 Primary reporting owner

SCHULTZ JOHN F

Relationship: Director
Address: C/O COLUMBIA BANKING SYSTEM, INC., 1301 A STREET, TACOMA
Signature: /s/ Andrea M. Newburn, Attorney-in-fact
Signature date: 18 May 2026

Reported non-derivative transactions

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

COLB transaction

Common Stock

Award

Transaction value
Shares: +3,949
Change %: +8.5%
Price: $0.000000^*
Shares after: 50,384
Date: 14 May 2026
Ownership: Direct
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Beneficial ownership has been adjusted to correct a prior reporting error, as a disposition of 3,000 shares reported on August 29, 2024 was not reflected in subsequent ownership totals.