Key facts
- This page summarizes Aaron James Deer's Form 4 filing for COLUMBIA BANKING SYSTEM, INC. (COLB).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 02 Jul 2026, 17:17.
Aaron James Deer - 30 Jun 2026 Form 4 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)
- Reporting relationship
- EVP Chief Strategy/Innov Offcr
- Issuer ticker
- COLB
- Reported as of
- 30 Jun 2026
- Net transaction value
- +$22,478
- SEC form
- 4
- Accepted by SEC
- 02 Jul 2026, 17:17:10 UTC
- Prior SEC filing
- 17 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Andrea M. Newburn, Attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Aaron James Deer filed Form 4 for COLUMBIA BANKING SYSTEM, INC. (COLB) on 02 Jul 2026.
Change
- Previous filing in this sequence was filed on 17 Mar 2026.
- Current net transaction value: +$22,478.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001810107
Primary reporting owner
Deer Aaron James
- Relationship
- EVP Chief Strategy/Innov Offcr
- Address
- C/O COLUMBIA BANKING SYSTEM, INC., 1301 A STREET, TACOMA
- Signature
- /s/ Andrea M. Newburn, Attorney-in-fact
- Signature date
- 02 Jul 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
COLB
transaction
Common Stock
Purchase
- Transaction value
- $22,478
- Shares
- +886
- Change %
- +2.1%
- Price
- $25.37
- Shares after
- 42,761
- Date
- 30 Jun 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
ESPP Purchase