Arkolith/Insider Trading/COLB/Form 4

Moore Devine David

EVP Chief Marketing OfficerCOLUMBIA BANKING SYSTEM, INC. (COLB) · full profile →Form 4 · filed Feb 4, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 2, 2026Tax withholding(F)965$29.69$29K23K
Feb 2, 2026Grant(A)2K$29.69$62K24K

Transaction Codes

F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000887343-26-000030) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML