Columbia Banking System, Inc (COLB) insider trading
Every open-market stock purchase and sale by Columbia Banking System, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Steven R Gardner (Board member) sold $329K in the last 90 days.
- Last company insider buy: Aaron James Deer (Vice president), $22.5K, 4 months ago.
- Congress: Josh Gottheimer sold $1K to $15K, 8 months ago.
Last 12 months: insiders bought $22.5K (1 buy) and sold $1M (6 sales). Last close $30.70 on Oct 30, 2026.
Recent COLB insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $156K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $70.4K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $67.2K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $15.1K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $10.1K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $6.2K |
| Oct 29, 2026 | Steven R Gardner (Director) | Sold | $3.1K |
| Sep 14, 2026 | Luis Machuca (Director) | Bought (not open market) | $18.1K |
| Sep 4, 2026 | Steven R Gardner (Director) | Bought (not open market) | — |
| Sep 2, 2026 | Simone Lagomarsino (Director) | Bought (not open market) | — |
| Aug 14, 2026 | Judi Giem (VP) | Sold (not open market) | $21K |
| Aug 14, 2026 | Judi Giem (VP) | Bought (not open market) | — |
| Jun 30, 2026 | Aaron James Deer (VP) | Bought | $22.5K |
| Jun 15, 2026 | Luis Machuca (Director) | Bought (not open market) | $17.9K |
| Jun 8, 2026 | Devine David Moore (C-suite exec) | Sold | $114K |
| Jun 8, 2026 | Devine David Moore (C-suite exec) | Sold | $1.8K |
| May 14, 2026 | Elizabeth Whitehead Seaton (Director) | Bought (not open market) | — |
| May 14, 2026 | Luis Machuca (Director) | Bought (not open market) | — |
| May 14, 2026 | Randal Lee Lund (Director) | Bought (not open market) | — |
| May 14, 2026 | Hilliard C. Terry III (Director) | Bought (not open market) | — |
| May 14, 2026 | Mark A Finkelstein (Director) | Bought (not open market) | — |
| May 14, 2026 | Anddria Varnado (Director) | Bought (not open market) | — |
| May 14, 2026 | M Christian Mitchell (Director) | Bought (not open market) | — |
| May 14, 2026 | John F Schultz (Director) | Bought (not open market) | — |
| May 14, 2026 | Eric Forrest (Director) | Bought (not open market) | — |
Who's trading COLB
- Steven R Gardner, Director: sold $733K (8 sales), last Oct 29, 2026
- Luis Machuca, Director: other filings, last Sep 14, 2026
- Simone Lagomarsino, Director: other filings, last Sep 2, 2026
- Judi Giem, VP: other filings, last Aug 14, 2026
- Aaron James Deer, Officer: bought $22.5K (1 buy), last Jun 30, 2026
- Devine David Moore, C-suite exec: sold $115K (2 sales), last Jun 8, 2026
- Mark A Finkelstein, Director: other filings, last May 14, 2026
- Eric Forrest, Director: other filings, last May 14, 2026
- M Christian Mitchell, Director: other filings, last May 14, 2026
- Randal Lee Lund, Director: other filings, last May 14, 2026
- Anddria Varnado, Director: other filings, last May 14, 2026
- Hilliard C. Terry III, Director: other filings, last May 14, 2026
- Jaynie M Studenmund, Director: other filings, last May 14, 2026
- Elizabeth Whitehead Seaton, Director: other filings, last May 14, 2026
- John F Schultz, Director: other filings, last May 14, 2026
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