Columbia Banking System (COLB) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
- Closed at $28.63, +2.14% vs the prior close of $28.03.
- Volume 2.25M shares, 0.8x its 50-day average.
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
COLB rises 2.1% to $28.63. Closed at $28.63, +2.14% vs the prior close of $28.03. Day range $27.98–$28.65, opened at $28.15.
COLB daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — COLB rises 2.1% to $28.63
- Closed at $28.63, +2.14% vs the prior close of $28.03. Day range $27.98–$28.65, opened at $28.15.
- Volume was 2.25M shares, 0.8x its 50-day average of 2.80M.
- Price is -4.6% vs its 50-day average ($30.00) and -3.9% vs its 200-day average ($29.80).
- 52-week range $23.83–$33.68; today's close sits at 49% of that range, 15.0% below the 52-week high.
Oct 14, 2026 — COLB dips 0.7% to $28.03, a 6-month low
- Closed at $28.03, -0.71% vs the prior close of $28.23. Day range $27.65–$28.10, opened at $27.73.
- Volume was 2.98M shares, 1.1x its 50-day average of 2.79M.
- Price is -6.7% vs its 50-day average ($30.06) and -5.9% vs its 200-day average ($29.80).
- 52-week range $23.83–$33.68; today's close sits at 43% of that range, 16.8% below the 52-week high.
Oct 13, 2026 — COLB dips 1.0% to $28.23, a 6-month low
- Closed at $28.23, -0.98% vs the prior close of $28.51. Day range $28.04–$28.75, opened at $28.58.
- Volume was 2.93M shares, 1.1x its 50-day average of 2.78M.
- Price is -6.3% vs its 50-day average ($30.13) and -5.3% vs its 200-day average ($29.80).
- 52-week range $23.83–$33.68; today's close sits at 45% of that range, 16.2% below the 52-week high.
Oct 12, 2026 — COLB rises 0.5% to $28.51
- Closed at $28.51, +0.49% vs the prior close of $28.37. Day range $28.32–$28.64, opened at $28.39.
- Volume was 1.80M shares, 0.6x its 50-day average of 2.80M.
- Price is -5.6% vs its 50-day average ($30.20) and -4.3% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 48% of that range, 15.4% below the 52-week high.
Oct 9, 2026 — COLB dips 0.6% to $28.37
- Closed at $28.37, -0.56% vs the prior close of $28.53. Day range $28.19–$28.53, opened at $28.51.
- Volume was 1.60M shares, 0.6x its 50-day average of 2.85M — lighter than usual.
- Price is -6.2% vs its 50-day average ($30.25) and -4.8% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 46% of that range, 15.8% below the 52-week high.
Oct 8, 2026 — COLB rises 1.0% to $28.53
- Closed at $28.53, +0.96% vs the prior close of $28.26. Day range $27.91–$28.55, opened at $28.07.
- Volume was 3.45M shares, 1.2x its 50-day average of 2.84M.
- Price is -5.9% vs its 50-day average ($30.31) and -4.3% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 48% of that range, 15.3% below the 52-week high.
Oct 7, 2026 — COLB dips 2.2% to $28.26, a 6-month low
- Closed at $28.26, -2.18% vs the prior close of $28.89. Day range $27.96–$28.91, opened at $28.91.
- Volume was 3.19M shares, 1.1x its 50-day average of 2.83M.
- Price is -6.9% vs its 50-day average ($30.35) and -5.2% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 45% of that range, 16.1% below the 52-week high.
Oct 6, 2026 — COLB ends flat (+0.2%) to $28.89
- Closed at $28.89, +0.17% vs the prior close of $28.84. Day range $28.75–$29.17, opened at $28.97.
- Volume was 2.43M shares, 0.9x its 50-day average of 2.84M.
- Price is -5.0% vs its 50-day average ($30.41) and -3.1% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 51% of that range, 14.2% below the 52-week high.
Oct 5, 2026 — COLB ends flat (-0.3%) to $28.84
- Closed at $28.84, -0.28% vs the prior close of $28.92. Day range $28.61–$29.10, opened at $29.00.
- Volume was 2.60M shares, 0.9x its 50-day average of 2.91M.
- Price is -5.3% vs its 50-day average ($30.45) and -3.3% vs its 200-day average ($29.81).
- 52-week range $23.83–$33.68; today's close sits at 51% of that range, 14.4% below the 52-week high.
Oct 2, 2026 — COLB rises 0.7% to $28.92
- Closed at $28.92, +0.66% vs the prior close of $28.73. Day range $28.80–$29.25, opened at $28.95.
- Volume was 2.38M shares, 0.8x its 50-day average of 2.96M.
- Price is -5.2% vs its 50-day average ($30.50) and -3.0% vs its 200-day average ($29.82).
- 52-week range $23.83–$33.68; today's close sits at 52% of that range, 14.1% below the 52-week high.
COLB latest news & SEC filings
Every SEC filing by or about COLB in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Sep 30, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Sep 15, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 8, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 4, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 2, 2026 · 3 — Initial insider ownership statement (Form 3)
Initial insider ownership statement (Form 3) — a new director, officer or 10% owner disclosed their holdings
Aug 18, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 14, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Aug 13, 2026 · SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 4, 2026 · 10-Q — Quarterly report (unaudited financial statements for the quarter)
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Net income: $208.00M (prior year $152.00M) (+36.8% vs Jun 30, 2025)
- Diluted EPS: $0.73 (prior year $0.73) (+0.0% vs Jun 30, 2025)
Jul 30, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 5.02 — Change in directors or officers (appointment, departure or pay).
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Jul 23, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 2, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Deer Aaron James bought 886 shares at $25.37 (≈$22.48K) on Jun 30, 2026
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Jul 1, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Jun 25, 2026 · 11-K — Annual report for an employee stock plan
Annual report for an employee stock plan
Things to know before you trade COLB
- Last results release: Jul 23, 2026 (8-K Item 2.02). Previous ones: Apr 23, 2026, Jan 22, 2026, Oct 30, 2025. Based on that rhythm, the next report is likely around Oct 22, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 0.98% (largest 2.2%). That is a relatively calm stock.
- Liquidity: about 2.78M shares (≈$79.60M) trade per day on average.
- 52-week position: $28.63 vs a range of $23.83–$33.68 (49% of the range).
- Dividends: last ex-dividend date Aug 28, 2026 ($0.37/share); 4 payments in the past 12 months.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 1 open-market buys, 7 sales; latest: Aaron James Deer bought 886 shares on Jun 30, 2026.
- Latest filings: 8-K Sep 30, 2026; 8-K Aug 14, 2026; 10-Q Aug 4, 2026.
- Share count: 282.90M shares outstanding (Jul 31, 2026), +34.5% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: State Commercial Banks.
COLB market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 28.15 | 28.65 | 27.98 | 28.63 | 2.25M |
| Oct 14, 2026 | 27.73 | 28.10 | 27.65 | 28.03 | 2.98M |
| Oct 13, 2026 | 28.58 | 28.75 | 28.04 | 28.23 | 2.93M |
| Oct 12, 2026 | 28.39 | 28.64 | 28.32 | 28.51 | 1.80M |
| Oct 9, 2026 | 28.51 | 28.53 | 28.19 | 28.37 | 1.60M |
| Oct 8, 2026 | 28.07 | 28.55 | 27.91 | 28.53 | 3.45M |
| Oct 7, 2026 | 28.91 | 28.91 | 27.96 | 28.26 | 3.19M |
| Oct 6, 2026 | 28.97 | 29.17 | 28.75 | 28.89 | 2.43M |
| Oct 5, 2026 | 29.00 | 29.10 | 28.61 | 28.84 | 2.60M |
| Oct 2, 2026 | 28.95 | 29.25 | 28.80 | 28.92 | 2.38M |
| Oct 1, 2026 | 28.42 | 28.83 | 27.96 | 28.73 | 3.30M |
| Sep 30, 2026 | 28.70 | 29.00 | 28.49 | 28.60 | 2.45M |
| Sep 29, 2026 | 29.07 | 29.20 | 28.52 | 28.69 | 3.58M |
| Sep 28, 2026 | 29.60 | 29.60 | 29.03 | 29.06 | 2.05M |
| Sep 25, 2026 | 29.43 | 29.81 | 29.30 | 29.64 | 1.85M |
| Sep 24, 2026 | 28.89 | 29.25 | 28.76 | 29.18 | 2.93M |
| Sep 23, 2026 | 29.34 | 29.49 | 28.82 | 28.85 | 2.60M |
| Sep 22, 2026 | 29.93 | 30.10 | 29.34 | 29.34 | 2.58M |
| Sep 21, 2026 | 30.06 | 30.31 | 29.82 | 29.90 | 2.19M |
| Sep 18, 2026 | 29.85 | 29.97 | 29.59 | 29.93 | 6.48M |
About Columbia Banking System
Columbia Banking System (COLB) is listed on the Nasdaq and classified by the SEC under “State Commercial Banks”. Its business address is in TACOMA, WA. State of incorporation: WA. Fiscal year ends December 31. SEC CIK 887343.
COLB board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Mark A Finkelstein | Director | May 18, 2026 |
| Eric Forrest | Director | May 18, 2026 |
| Steven R Gardner | Director | Sep 8, 2026 |
| Simone Lagomarsino | Director | Sep 4, 2026 |
| Randal Lee Lund | Director | May 18, 2026 |
| Luis Machuca | Director | Sep 15, 2026 |
| M Christian Mitchell | Director | May 18, 2026 |
| John F Schultz | Director | May 18, 2026 |
| Elizabeth Whitehead Seaton | Director | May 18, 2026 |
| Jaynie M Studenmund | Director | May 18, 2026 |
| Clint Stein | Chair, CEO, President | Mar 17, 2026 |
| Hilliard C. Iii Terry | Director | May 18, 2026 |
| Anddria Varnado | Director | May 18, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Drew K Anderson | EVP Chief Admin Officer | Mar 17, 2026 |
| Kumi Yamamoto Baruffi | EVP General Counsel, Corp Sec | Mar 20, 2026 |
| Banking System, Inc. Columbia | EVP, Chief Accounting Officer | Dec 1, 2025 |
| Aaron James Deer | EVP Chief Strategy/Innov Offcr | Jul 2, 2026 |
| Judi Giem | EVP CHRO | Aug 18, 2026 |
| Brock Lakely | EVP, Chief Accounting Officer | Apr 16, 2026 |
| Christopher Merrywell | Senior Executive VP | Mar 17, 2026 |
| Devine David Moore | EVP Chief Marketing Officer | Jun 10, 2026 |
| Frank Namdar | EVP Chief Credit Officer | Mar 17, 2026 |
| Torran B Nixon | Senior Executive VP | Mar 17, 2026 |
| Andrew H Ognall | EVP Chief Risk Officer | Mar 17, 2026 |
| Ivan A Seda | EVP, Chief Financial Officer | Feb 20, 2026 |
| Clint Stein | Chair, CEO, President | Mar 17, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 30, 2026 | Aaron James Deer | Buy | 886 | $25.37 |
| Jun 8, 2026 | Devine David Moore | Sale | 3,812 | $29.78 |
| Jun 8, 2026 | Devine David Moore | Sale | 60 | $29.77 |
| Mar 13, 2026 | Brock Lakely | Sale | 211 | $26.23 |
| Mar 13, 2026 | Kumi Yamamoto Baruffi | Sale | 937 | $26.23 |
| Mar 4, 2026 | Torran B Nixon | Sale | 2,240 | $28.85 |
| Mar 3, 2026 | Torran B Nixon | Sale | 2,241 | $28.25 |
| Jan 30, 2026 | Steven R Gardner | Sale | 13,725 | $29.43 |
COLB financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $177.00M | $550.00M | 2.30 | $746.00M |
| Dec 31, 2024 | $149.00M | $534.00M | 2.55 | $659.00M |
| Dec 31, 2023 | $134.00M | $349.00M | 1.78 | $670.00M |
| Dec 31, 2022 | $85.83M | $336.75M | 2.60 | $1.07B |
| Dec 31, 2021 | $83.31M | $420.30M | 3.21 | $662.72M |
Latest balance sheet: total assets $65.38B, total liabilities $57.83B, cash $1.77B (as of Jun 30, 2026).
COLB earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Jul 23, 2026 | 8-K Item 2.02 (results) | $32.26 |
| Apr 23, 2026 | 8-K Item 2.02 (results) | $29.65 |
| Jan 22, 2026 | 8-K Item 2.02 (results) | $29.67 |
| Oct 30, 2025 | 8-K Item 2.02 (results) | $26.02 |
| Jul 24, 2025 | 8-K Item 2.02 (results) | $23.35 |
| Apr 23, 2025 | 8-K Item 2.02 (results) | $23.52 |
| Jan 23, 2025 | 8-K Item 2.02 (results) | $28.15 |
| Oct 24, 2024 | 8-K Item 2.02 (results) | $28.27 |
| Jul 25, 2024 | 8-K Item 2.02 (results) | — |
| Apr 25, 2024 | 8-K Item 2.02 (results) | — |
| Jan 24, 2024 | 8-K Item 2.02 (results) | — |
| Oct 18, 2023 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.