Key facts
- This page summarizes Jaynie M. Studenmund'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, 17:16.
Jaynie M. Studenmund - 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, 17:16:20 UTC
- Prior SEC filing
- 03 Sep 2025
- 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
Jaynie M. Studenmund filed Form 4 for COLUMBIA BANKING SYSTEM, INC. (COLB) on 18 May 2026.
Change
- Previous filing in this sequence was filed on 03 Sep 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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001222385
Primary reporting owner
STUDENMUND JAYNIE M
- 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 %
- +22%
- Price
- $0.000000*
- Shares after
- 21,807
- Date
- 14 May 2026
- Ownership
- Direct
COLB
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 3,843
- Date
- 14 May 2026
- Ownership
- by IRA
* marks a reported price that did not pass the local price check.