CIK 0000887343 · Large accelerated filer
COLUMBIA BANKING SYSTEM, INC.
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- COLB
- Exchange
- Nasdaq
- Industry
- State Commercial Banks
- FY end
- Dec 31
- Incorporated
- WA
- Entity type
- operating
- EIN
- 911422237
- Phone
- 2533051900
- Business address
- 1301 A STREET, TACOMA, WA, 98402
- Former names
- COLUMBIA BANKING SYSTEM INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $328,617
- in 1 filing
Net −$328,617. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-02-18 | Lakely Brock EVP, Chief Accounting Officer | Grant or award · Restricted Stock Unit | +5,601 | $31.24 | $175K | 10,656 |
| 2026-02-18 | Giem Judi EVP CHRO | Grant or award · Restricted Stock Unit | +8,322 | $31.24 | $260K | 15,501 |
| 2026-02-18 | Deer Aaron James EVP Chief Strategy/Innov Offcr | Grant or award · Restricted Stock Unit | +4,001 | $31.24 | $125K | 8,700 |
| 2026-02-18 | BARUFFI KUMI YAMAMOTO EVP General Counsel, Corp Sec | Grant or award · Restricted Stock Unit | +8,322 | $31.24 | $260K | 15,464 |
| 2026-02-18 | Anderson Drew K EVP Chief Admin Officer | Grant or award · Restricted Stock Unit | +8,002 | $31.24 | $250K | 53,113 |
| 2026-02-15 | Stein Clint Chair, President, CEO | Shares withheld for taxes | −3,922 | $31.49 | $124K | 150,353 |
| 2026-02-15 | OGNALL ANDREW H EVP Chief Risk Officer | Shares withheld for taxes | −931 | $31.49 | $29K | 74,006 |
| 2026-02-15 | Nixon Torran B Senior Executive VP | Shares withheld for taxes | −1,905 | $31.49 | $60K | 105,690 |
| 2026-02-15 | Namdar Frank EVP Chief Credit Officer | Shares withheld for taxes | −1,169 | $31.49 | $37K | 32,278 |
| 2026-02-15 | Moore Devine David EVP Chief Marketing Officer | Shares withheld for taxes | −485 | $31.49 | $15K | 22,782 |
| 2026-02-15 | Merrywell Christopher Senior Executive VP | Shares withheld for taxes | −1,706 | $31.49 | $54K | 44,257 |
| 2026-02-15 | Deer Aaron James EVP Chief Strategy/Innov Offcr | Shares withheld for taxes | −531 | $31.49 | $17K | 41,843 |
| 2026-02-15 | BARUFFI KUMI YAMAMOTO EVP General Counsel, Corp Sec | Shares withheld for taxes | −1,036 | $31.49 | $33K | 54,070 |
| 2026-02-15 | Anderson Drew K EVP Chief Admin Officer | Shares withheld for taxes | −788 | $31.49 | $25K | 22,486 |
| 2026-02-04 | MACHUCA LUIS Director | Grant or award · Deferred Compensation Phantom Stock | +562 | $31.12 | $17K | 47,744 |
| 2026-02-02 | Deer Aaron James EVP Chief Strategy/Innov Offcr | Grant or award | +2,620 | $29.69 | $78K | 43,565 |
| 2026-02-02 | Deer Aaron James EVP Chief Strategy/Innov Offcr | Shares withheld for taxes | −1,191 | $29.69 | $35K | 42,374 |
| 2026-02-02 | Merrywell Christopher Senior Executive VP | Grant or award | +12,576 | $29.69 | $373K | 50,912 |
| 2026-02-02 | Merrywell Christopher Senior Executive VP | Shares withheld for taxes | −4,949 | $29.69 | $147K | 45,963 |
| 2026-02-02 | Namdar Frank EVP Chief Credit Officer | Grant or award | +4,667 | $29.69 | $139K | 35,830 |
Page 5 of 8 · 159 trades