// company-profile
Columbia Banking System, Inc.
COLB// activity-summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $97K across 2 transactions, with 1 offsetting purchase.
// 90-day insight
Over the last 90 days, Columbia Banking System, Inc. insiders bought $18K (11 transactions) and sold $127K (3 transactions).
- Most active insider: Moore Devine David with 2 transactions totaling $115K.
- Largest single sale: $114K by Moore Devine David on Jun 8, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Columbia Banking System, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 15, 2026 | MACHUCA LUIS | COLB | Award | 563 | $31.78 | $18K |
| Jun 8, 2026 | Moore Devine David | COLB | Sale | 3,812 | $29.77 | $114K |
| Jun 8, 2026 | Moore Devine David | COLB | Sale | 60 | $29.77 | $2K |
| May 14, 2026 | MACHUCA LUIS | COLB | Award | 3,949 | $0.00 | $0K |
| May 14, 2026 | Forrest Eric | COLB | Award | 3,949 | $0.00 | $0K |
45 more transactions hidden
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