Form 4/A for COLB COLUMBIA BANKING SYSTEM, INC.
Accepted 2026-03-20 00:00:00 ET · period of report 2026-03-13 · accession 0000887343-26-000107 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 2026-03-20 | 2026-03-13 | COLB | BARUFFI KUMI YAMAMOTO | EVP GC, Corp Sec | F - Tax | $26.23 | -937 | 53.7K | -2% | -$24.6K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-13 | F | D | 937 | $26.23 | 53,715 | D | — | — |