Compensation award — excluded from discretionary-purchase analysis.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Sep 14, 2026
Reporting period
Not applicable
Filed with the SEC
Sep 15, 2026
DirectorIndirect holdingGrant / award
Context
Classification
grant award
Code A — grant or award
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0000887343-26-000178
Filed / recorded
Sep 15, 2026, 8:55 PM UTC
Added to OQRO
Oct 6, 2026, 7:14 PM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
COLUMBIA BANKING SYSTEM, INC.
Issuer CIK
887343
Ticker
COLB
Reporting person
Luis Machuca
Relationship
Director
Security
Deferred Compensation Phantom Stock
Table
Derivative (Table II)
Transaction date
Sep 14, 2026
Transaction code
A
Shares / units
594
Price per share
$30.48
Acquired / disposed
Acquired (A)
Shares owned after
49,560
Ownership form
Indirect — Deferred Compensation
Amendment
No
Footnotes from the filing
The deferred compensation plan phantom stock was accrued under the Registrant's deferred compensation plan and will be settled in accordance with the terms of the deferred compensation plan following the reporting person's cessation of service as a director of the Registrant.