SWStonkWhisper
← Back to Intel
Insider ActivityCOLB

Moore Devine David, EVP Chief Marketing Officer at COLUMBIA BANKING SYSTEM, INC., sold $114K of COLB

Last updated Aug 12, 2026

This page documents an SEC Form 4 insider trading disclosure for $COLB securities filed with the Securities and Exchange Commission. Section 16 of the Securities Exchange Act of 1934 mandates that corporate officers, directors, and beneficial owners of more than 10% of a company's registered equity securities must report their personal trades within two business days of execution. Insider transactions are closely monitored by market participants because insiders possess firsthand knowledge of company operations, financial condition, and near-term prospects. The transaction details below are drawn directly from the SEC EDGAR filing database and reflect the information as reported.

Moore Devine David EVP Chief Marketing Officer
COLUMBIA BANKING SYSTEM, INC. · $COLB
$114K Total Value
3,812 Shares Traded
$29.775 Price / Share
18,636 Shares Owned After
2026-06-10 Filing Date

Transaction Details

InsiderMoore Devine David
TitleEVP Chief Marketing Officer
CompanyCOLUMBIA BANKING SYSTEM, INC.
TickerCOLB
Transaction TypeSale
Transaction Date2026-06-08
Shares Traded3,812
Price Per Share$29.775
Total Value$114K
Filed Date2026-06-10
Accession Number0001798077-26-000005

Ownership Context

Shares Owned After Transaction18,636
Ownership TypeDirect

SEC Filing

↗ View Original SEC Filing

Accession: 0001798077-26-000005

Other Insider Trades — COLB

Other Trades by Moore Devine David

Full Ticker Profile

View all insider trades, dark pool activity, congressional filings, and the Whisper Score for COLB — COLUMBIA BANKING SYSTEM, INC. →

Whisper Score — COLB

72.94
Frenzy
Current Whisper Score

See full analysis for COLB →

Track COLB insider activity in real time on The Wire →

Get alerts when Moore Devine David files new trades — Go Pro →

Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.

Last updated: August 12, 2026 at 07:19 UTC

Not Financial Advice: This article is for informational and educational purposes only and does not constitute financial advice, investment advice, or a recommendation to buy or sell any security. StonkWhisper aggregates publicly available data from verified regulatory filings and proprietary analysis pipelines. All investment decisions are made solely at your own risk. Guerilla Finance LLC is not a registered investment advisor or broker-dealer. Always consult a qualified financial professional before making investment decisions.

Want real-time data? Access The Wire for live sentiment tracking.