COLB
Columbia Banking System Inc
NASDAQ: COLB · FINANCIAL SERVICES · BANKS - REGIONAL
$30.72
-1.03% today
Updated 2026-10-28
Market cap
$8.05B
P/E ratio
11.15
P/S ratio
3.21x
EPS (TTM)
$2.55
Dividend yield
5.13%
52W range
$23 – $33
Volume
2.9M
Columbia Banking System Inc (COLB) Insider transactions
Net insider activity
Net buying (192,451 shares)
Buy transactions
47
Sell transactions
53
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-14 | MACHUCA, LUIS | Director | Buy | 594 | $30.48 | $18105.12 |
| 2026-09-04 | GARDNER, STEVEN R | Director | Buy | 2,577 | — | — |
| 2026-09-02 | LAGOMARSINO, SIMONE | Director | Buy | 2,670 | — | — |
| 2026-08-14 | GIEM, JUDI | EVP CHRO | Sale | 2,393 | — | — |
| 2026-08-14 | GIEM, JUDI | EVP CHRO | Buy | 2,393 | $32.69 | $78227.17 |
| 2026-08-14 | GIEM, JUDI | EVP CHRO | Sale | 643 | $32.69 | $21019.67 |
| 2026-06-30 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Buy | 886 | $25.37 | $22477.82 |
| 2026-06-15 | MACHUCA, LUIS | Director | Buy | 563 | $31.78 | $17892.14 |
| 2026-06-08 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 3,812 | $29.78 | $113502.30 |
| 2026-06-08 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 60 | $29.77 | $1786.20 |
| 2026-05-14 | VARNADO, ANDDRIA | Director | Buy | 3,949 | — | — |
| 2026-05-14 | TERRY, HILLIARD C. III | Director | Buy | 3,949 | — | — |
| 2026-05-14 | STUDENMUND, JAYNIE M | Director | Buy | 3,949 | — | — |
| 2026-05-14 | SEATON, ELIZABETH WHITEHEAD | Director | Buy | 3,949 | — | — |
| 2026-05-14 | SCHULTZ, JOHN F | Director | Buy | 3,949 | — | — |
| 2026-05-14 | MITCHELL, M CHRISTIAN | Director | Buy | 3,949 | — | — |
| 2026-05-14 | MACHUCA, LUIS | Director | Buy | 3,949 | — | — |
| 2026-05-14 | LUND, RANDAL LEE | Director | Buy | 3,949 | — | — |
| 2026-05-14 | FORREST, ERIC | Director | Buy | 3,949 | — | — |
| 2026-05-14 | FINKELSTEIN, MARK A | Director | Buy | 3,949 | — | — |
| 2026-04-15 | LAKELY, BROCK | EVP, Chief Accounting Officer | Sale | 396 | $29.10 | $11523.60 |
| 2026-03-16 | MACHUCA, LUIS | Director | Buy | 659 | $26.83 | $17680.97 |
| 2026-03-13 | STEIN, CLINT | Director, Chair, CEO, President | Sale | 18,171 | — | — |
| 2026-03-13 | STEIN, CLINT | Director, Chair, CEO, President | Buy | 18,171 | $26.23 | $476625.33 |
| 2026-03-13 | STEIN, CLINT | Director, Chair, CEO, President | Sale | 7,151 | $26.23 | $187570.73 |
| 2026-03-13 | OGNALL, ANDREW H | EVP Chief Risk Officer | Sale | 2,381 | — | — |
| 2026-03-13 | OGNALL, ANDREW H | EVP Chief Risk Officer | Buy | 2,381 | $26.23 | $62453.63 |
| 2026-03-13 | OGNALL, ANDREW H | EVP Chief Risk Officer | Sale | 951 | $26.23 | $24944.73 |
| 2026-03-13 | NIXON, TORRAN B | Senior Executive VP | Sale | 5,013 | — | — |
| 2026-03-13 | NIXON, TORRAN B | Senior Executive VP | Buy | 5,013 | $26.23 | $131490.99 |
| 2026-03-13 | NIXON, TORRAN B | Senior Executive VP | Sale | 2,002 | $26.23 | $52512.46 |
| 2026-03-13 | NAMDAR, FRANK | EVP Chief Credit Officer | Sale | 2,820 | — | — |
| 2026-03-13 | NAMDAR, FRANK | EVP Chief Credit Officer | Buy | 2,820 | $26.23 | $73968.60 |
| 2026-03-13 | NAMDAR, FRANK | EVP Chief Credit Officer | Sale | 1,367 | $26.23 | $35856.41 |
| 2026-03-13 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 940 | — | — |
| 2026-03-13 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Buy | 940 | $26.23 | $24656.20 |
| 2026-03-13 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 376 | $26.23 | $9862.48 |
| 2026-03-13 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Sale | 5,013 | — | — |
| 2026-03-13 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Buy | 5,013 | $26.23 | $131490.99 |
| 2026-03-13 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Sale | 1,973 | $26.23 | $51751.79 |
| 2026-03-13 | LAKELY, BROCK | EVP, Chief Accounting Officer | Sale | 846 | — | — |
| 2026-03-13 | LAKELY, BROCK | EVP, Chief Accounting Officer | Buy | 846 | $26.23 | $22190.58 |
| 2026-03-13 | LAKELY, BROCK | EVP, Chief Accounting Officer | Sale | 211 | $26.23 | $5534.53 |
| 2026-03-13 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Sale | 1,567 | — | — |
| 2026-03-13 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Buy | 1,567 | $26.23 | $41102.41 |
| 2026-03-13 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Sale | 617 | $26.23 | $16183.91 |
| 2026-03-13 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Sale | 2,381 | — | — |
| 2026-03-13 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Buy | 2,381 | $26.23 | $62453.63 |
| 2026-03-13 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Sale | 937 | $26.23 | $24577.51 |
| 2026-03-13 | ANDERSON, DREW K | EVP Chief Admin Officer | Sale | 2,506 | — | — |
| 2026-03-13 | ANDERSON, DREW K | EVP Chief Admin Officer | Buy | 2,506 | $26.23 | $65732.38 |
| 2026-03-13 | ANDERSON, DREW K | EVP Chief Admin Officer | Sale | 1,215 | $26.23 | $31869.45 |
| 2026-03-04 | NIXON, TORRAN B | Senior Executive VP | Sale | 2,240 | $28.85 | $64624.00 |
| 2026-03-03 | NIXON, TORRAN B | Senior Executive VP | Sale | 2,241 | $28.25 | $63308.25 |
| 2026-03-01 | STEIN, CLINT | Director, Chair, President, CEO | Sale | 9,789 | $28.45 | $278497.05 |
| 2026-03-01 | OGNALL, ANDREW H | EVP Chief Risk Officer | Sale | 1,304 | $28.45 | $37098.80 |
| 2026-03-01 | NIXON, TORRAN B | Senior Executive VP | Sale | 2,980 | $28.45 | $84781.00 |
| 2026-03-01 | NAMDAR, FRANK | EVP Chief Credit Officer | Sale | 1,808 | $28.45 | $51437.60 |
| 2026-03-01 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 838 | $28.45 | $23841.10 |
| 2026-03-01 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Sale | 3,230 | $28.45 | $91893.50 |
| 2026-03-01 | LAKELY, BROCK | EVP, Chief Accounting Officer | Sale | 391 | $28.45 | $11123.95 |
| 2026-03-01 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Sale | 918 | $28.45 | $26117.10 |
| 2026-03-01 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Sale | 1,799 | $28.45 | $51181.55 |
| 2026-03-01 | ANDERSON, DREW K | EVP Chief Admin Officer | Sale | 1,808 | $28.45 | $51437.60 |
| 2026-02-18 | STEIN, CLINT | Director, Chair, President, CEO | Buy | 56,017 | $31.24 | $1.75M |
| 2026-02-18 | SEDA, IVAN A | EVP, Chief Financial Officer | Buy | 12,804 | $31.24 | $399996.96 |
| 2026-02-18 | OGNALL, ANDREW H | EVP Chief Risk Officer | Buy | 8,002 | $31.24 | $249982.48 |
| 2026-02-18 | NIXON, TORRAN B | Senior Executive VP | Buy | 16,645 | $31.24 | $519989.80 |
| 2026-02-18 | NAMDAR, FRANK | EVP Chief Credit Officer | Buy | 8,002 | $31.24 | $249982.48 |
| 2026-02-18 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Buy | 2,800 | $31.24 | $87472.00 |
| 2026-02-18 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Buy | 16,645 | $31.24 | $519989.80 |
| 2026-02-18 | LAKELY, BROCK | EVP, Chief Accounting Officer | Buy | 5,601 | $31.24 | $174975.24 |
| 2026-02-18 | GIEM, JUDI | EVP CHRO | Buy | 8,322 | $31.24 | $259979.28 |
| 2026-02-18 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Buy | 4,001 | $31.24 | $124991.24 |
| 2026-02-18 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Buy | 8,322 | $31.24 | $259979.28 |
| 2026-02-18 | ANDERSON, DREW K | EVP Chief Admin Officer | Buy | 8,002 | $31.24 | $249982.48 |
| 2026-02-15 | STEIN, CLINT | Director, Chair, President, CEO | Sale | 3,922 | $31.49 | $123503.78 |
| 2026-02-15 | OGNALL, ANDREW H | EVP Chief Risk Officer | Sale | 931 | $31.49 | $29317.19 |
| 2026-02-15 | NIXON, TORRAN B | Senior Executive VP | Sale | 1,905 | $31.49 | $59988.45 |
| 2026-02-15 | NAMDAR, FRANK | EVP Chief Credit Officer | Sale | 1,169 | $31.49 | $36811.81 |
| 2026-02-15 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 485 | $31.49 | $15272.65 |
| 2026-02-15 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Sale | 1,706 | $31.49 | $53721.94 |
| 2026-02-15 | DEER, AARON JAMES | EVP Chief Strategy/Innov Offcr | Sale | 531 | $31.49 | $16721.19 |
| 2026-02-15 | BARUFFI, KUMI YAMAMOTO | EVP General Counsel, Corp Sec | Sale | 1,036 | $31.49 | $32623.64 |
| 2026-02-15 | ANDERSON, DREW K | EVP Chief Admin Officer | Sale | 788 | $31.49 | $24814.12 |
| 2026-02-04 | MACHUCA, LUIS | Director | Buy | 562 | $31.12 | $17489.44 |
| 2026-02-02 | STEIN, CLINT | Director, Chair, President, CEO | Buy | 28,927 | $29.69 | $858842.63 |
| 2026-02-02 | STEIN, CLINT | Director, Chair, President, CEO | Buy | 21,988 | $29.69 | $652823.72 |
| 2026-02-02 | STEIN, CLINT | Director, Chair, President, CEO | Sale | 11,383 | $29.69 | $337961.27 |
| 2026-02-02 | STEIN, CLINT | Director, Chair, President, CEO | Sale | 8,653 | $29.69 | $256907.57 |
| 2026-02-02 | OGNALL, ANDREW H | EVP Chief Risk Officer | Buy | 4,510 | $29.69 | $133901.90 |
| 2026-02-02 | OGNALL, ANDREW H | EVP Chief Risk Officer | Sale | 1,929 | $29.69 | $57272.01 |
| 2026-02-02 | NIXON, TORRAN B | Senior Executive VP | Buy | 13,844 | $29.69 | $411028.36 |
| 2026-02-02 | NIXON, TORRAN B | Senior Executive VP | Sale | 5,528 | $29.69 | $164126.32 |
| 2026-02-02 | NAMDAR, FRANK | EVP Chief Credit Officer | Buy | 4,667 | $29.69 | $138563.23 |
| 2026-02-02 | NAMDAR, FRANK | EVP Chief Credit Officer | Sale | 2,383 | $29.69 | $70751.27 |
| 2026-02-02 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Buy | 2,095 | $29.69 | $62200.55 |
| 2026-02-02 | MOORE, DEVINE DAVID | EVP Chief Marketing Officer | Sale | 965 | $29.69 | $28650.85 |
| 2026-02-02 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Buy | 12,576 | $29.69 | $373381.44 |
| 2026-02-02 | MERRYWELL, CHRISTOPHER | Senior Executive VP | Sale | 4,949 | $29.69 | $146935.81 |
Frequently asked questions
Are COLB insiders buying or selling?
Over the transactions on record, COLB insiders have been net sellers, with about $2.88M in stock sold across 53 sales, against 35 open-market purchases.
Does insider selling at COLB mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which COLB insiders are selling the most?
Recent selling is concentrated in a few names. STEIN, CLINT accounts for the largest share on record, with about $1.18M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.