COLUMBIA BANKING SYSTEM, INC.

COLB

COLB has 5 disclosed filings on Paydirt over the trailing twelve months from 2 members of Congress and 2 corporate insiders: 1 purchase and 4 sales, 1 filed past the deadline. Filers took a median of 29 days from execution to disclosure, and the most recent trade was executed Jun 8 and filed Jun 10. The most active filer was Gilbert Cisneros with 2 filings.

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Filings, ttm

1 buy · 4 sells · 1 late

Traders, ttm

2 congress · 2 insiders

Volume, ttmiDollar value disclosed in the window

$566K

estimated for Congress, as filed for insiders

Median delay

29d

execution to disclosure

Last traded

Jun 8

Filed Jun 10

ADViAverage daily dollar volume

–

not on file

Share price · 12M

$32.69 (+30.1%)

Adjusted for splits and dividends.

Volume by month

Buys $8K Sells $674K

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed

Gilbert Cisneros Representative 2 filings JG

Josh Gottheimer Representative (Joint) 1 filing SG Steven R Gardner Director 1 filing DM Devine David Moore EVP Chief Marketing Officer 1 filing TN Torran B Nixon Senior Executive VP 1 filing

Recent filings

Devine David MooreSALE EVP Chief Marketing Officer $114K
3,812 sh × $29.78
Exec Jun 8
Filed Jun 10 · 5:30 PM ET Josh GottheimerSALE Representative (Joint) $8K
$1K–15K bracket
Exec Mar 5
Filed Apr 8 Gilbert CisnerosSALE Representative $33K
$15K–50K bracket
Exec Jan 15
Filed Feb 13 Steven R GardnerSALE Director $404K
13,725 sh × $29.43
Exec Jan 30
Filed Feb 3 · 5:30 PM ET Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Oct 3 2025
Filed Nov 18 2025 † Torran B NixonSALE Senior Executive VP $116K
4,481 sh × $25.99
Exec Mar 4 2025
Filed Mar 5 2025 · 5:30 PM ET