Columbia Banking Systems (COLB) insider trading in the last 6 months

2 insiders sold $444K. No buys.

Quality Score7Average

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Form 4 filings, newest first

SellSteven R. Gardner$156KDirectorat $31.23 on Oct 29, filed Oct 30

SellSteven R. GardnerDirector$156Kat $31.23 on Oct 29, filed Oct 30

SellSteven R. Gardner$70KDirectorat $31.25 on Oct 29, filed Oct 30

SellSteven R. GardnerDirector$70Kat $31.25 on Oct 29, filed Oct 30

SellSteven R. Gardner$67KDirectorat $31.24 on Oct 29, filed Oct 30

SellSteven R. GardnerDirector$67Kat $31.24 on Oct 29, filed Oct 30

From SEC Form 4s, the newest filed Oct 30, 2026 · Insiders have 2 business days to file a trade

6 more filings on COLB in the last 6 months, for Pro members. See them free →

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Who files at Columbia Banking Systems

Steven R. GardnerDirector · 7 sales
David Moore DevineEVP Chief Marketing Officer · 2 sales

Insider trades by person

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Questions about COLB's insider trades

As of Nov 10, 2026: Columbia Banking Systems (COLB) has 9 insider filings on record in the last 6 months, the newest filed Oct 30, 2026. Its Quality Score is 7 (Average). Scores as of 11:18 PM ET, 15 minutes behind.

Are COLB insiders buying or selling?

2 insiders sold $444K across 9 filings in the last 6 months. No open-⁠market buys on record. The newest filing: Steven R. Gardner, Director, sold $156K on Oct 29, 2026.

Who are COLB's biggest insider sellers?

By the dollars of their sales in the last 6 months: Steven R. Gardner (Director), 7 sales; David Moore Devine (EVP Chief Marketing Officer), 2 sales.

When did a COLB insider last buy?

No COLB insider bought shares on the open market in the last 6 months, as filed on Form 4. The newest filing is a sale by Steven R. Gardner on Oct 29, 2026.

Columbia Banking Systems's page has its Quality Score, its chart, and its earnings. More in Financials and Banks.

Columbia Banking Systems (COLB) insider trading in the last 6 months

Form 4 filings, newest first

Who files at Columbia Banking Systems

Questions about COLB's insider trades

Every insider trade, with its stock's score.