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 |
|---|---|---|---|---|---|---|
| 2026-03-13 | Stein Clint Chair, CEO, President | Option exercise · Restricted Stock Unit | −18,171 | 166,984 | ||
| 2026-03-04 | Nixon Torran B Senior Executive VP | Sale 10b5-1 | −2,240 | $28.85 | $65K | 98,229 |
| 2026-03-03 | Nixon Torran B Senior Executive VP | Sale 10b5-1 | −2,241 | $28.25 | $63K | 100,469 |
| 2026-03-01 | Deer Aaron James EVP Chief Strategy/Innov Offcr | Shares withheld for taxes | −918 | $28.45 | $26K | 40,925 |
| 2026-03-01 | Namdar Frank EVP Chief Credit Officer | Shares withheld for taxes | −1,808 | $28.45 | $51K | 30,470 |
| 2026-03-01 | Nixon Torran B Senior Executive VP | Shares withheld for taxes | −2,980 | $28.45 | $85K | 102,710 |
| 2026-03-01 | Stein Clint Chair, President, CEO | Shares withheld for taxes | −9,789 | $28.45 | $278K | 140,564 |
| 2026-03-01 | OGNALL ANDREW H EVP Chief Risk Officer | Shares withheld for taxes | −1,304 | $28.45 | $37K | 72,702 |
| 2026-03-01 | Merrywell Christopher Senior Executive VP | Shares withheld for taxes | −3,230 | $28.45 | $92K | 41,027 |
| 2026-03-01 | Lakely Brock EVP, Chief Accounting Officer | Shares withheld for taxes | −391 | $28.45 | $11K | 10,469 |
| 2026-03-01 | Moore Devine David EVP Chief Marketing Officer | Shares withheld for taxes | −838 | $28.45 | $24K | 21,944 |
| 2026-03-01 | BARUFFI KUMI YAMAMOTO EVP General Counsel, Corp Sec | Shares withheld for taxes | −1,799 | $28.45 | $51K | 52,271 |
| 2026-03-01 | Anderson Drew K EVP Chief Admin Officer | Shares withheld for taxes | −1,808 | $28.45 | $51K | 20,678 |
| 2026-02-18 | Seda Ivan A EVP, Chief Financial Officer | Grant or award · Restricted Stock Unit | +12,804 | $31.24 | $400K | 12,804 |
| 2026-02-18 | Namdar Frank EVP Chief Credit Officer | Grant or award · Restricted Stock Unit | +8,002 | $31.24 | $250K | 16,460 |
| 2026-02-18 | Stein Clint Chair, President, CEO | Grant or award · Restricted Stock Unit | +56,017 | $31.24 | $1.7M | 185,155 |
| 2026-02-18 | OGNALL ANDREW H EVP Chief Risk Officer | Grant or award · Restricted Stock Unit | +8,002 | $31.24 | $250K | 55,407 |
| 2026-02-18 | Nixon Torran B Senior Executive VP | Grant or award · Restricted Stock Unit | +16,645 | $31.24 | $520K | 54,065 |
| 2026-02-18 | Moore Devine David EVP Chief Marketing Officer | Grant or award · Restricted Stock Unit | +2,800 | $31.24 | $87K | 5,619 |
| 2026-02-18 | Merrywell Christopher Senior Executive VP | Grant or award · Restricted Stock Unit | +16,645 | $31.24 | $520K | 56,304 |
Page 4 of 8 · 159 trades