COLUMBIA BANKING SYSTEM, INC. (COLB) insider buying and selling
There were no open-market insider purchases or sales at COLUMBIA BANKING SYSTEM, INC. (COLB) in the last 90 days. Over the last 12 months, 1 insider bought $22K of the stock, led by Aaron James Deer (EVP), who bought $22K on Jun 30, 2026; 1 insider sold $115K.
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Unlock COLBRecent open-market insider trades
Trades by the same insider within a week are shown as one line.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Aaron James Deer EVP | Open market purchase | 886 | $25.37 | $22K | |
| Devine David Moore EVP | Open market sale 2 trades | 3,872 | avg. $29.77 | $115K |
What the COLB insider trades really mean
The table above is the public summary. With an Insider Intel account you get the analysis behind it, for COLUMBIA BANKING SYSTEM, INC. and every other stock we track:
COLB's AI Signal score
One score from six weighted factors, with the full breakdown behind it, so you can see whether the buying is a real signal.
Unlock with a free accountEvery trade on the price chart
See each COLB insider purchase and sale plotted on the chart, with the gain or loss on every one since.
Unlock with a free accountInsider track records
Is Aaron James Deer worth following? See their grade, win rate and average return on past purchases.
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The consensus rating and price target next to the insider activity. Do the analysts agree?
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See when COLB insiders are likely free to trade, shaded on the chart, so you know when to expect new filings.
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Questions about COLB insider trading
Who bought COLUMBIA BANKING SYSTEM, INC. (COLB) stock recently?
Insiders who bought COLUMBIA BANKING SYSTEM, INC. stock on the open market in the last 12 months: Aaron James Deer ($22K). The most recent purchase was reported on Jun 30, 2026.
Are insiders buying or selling COLB?
Over the last 12 months insiders were net sellers of COLB on discretionary trades: $22K bought against $115K sold (scheduled and tax-related sales excluded).
What is a sell-to-cover or 10b5-1 sale?
A 10b5-1 sale is scheduled in advance under a pre-arranged plan, and a sell-to-cover sale is made to pay tax on vesting shares. Neither is a fresh decision to sell, so they say less about an insider's view than a discretionary sale.
Where does this data come from?
Officers, directors and large shareholders report their trades to the SEC on Form 4. This page lists the open-market purchases and sales by individual insiders from those public filings; funds and other institutions are not shown.
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How to read this page
Officers, directors and large shareholders must report their trades in company shares to the SEC on Form 4. This page lists open-market purchases and sales by individual insiders: trades made on the stock exchange at the going price. Funds and other institutions are not shown here.
Information from SEC EDGAR Form 4 filings, shown for general information only. It is not financial advice and does not recommend buying or selling any security. Trades are shown by transaction date and may be reported up to two business days later.