Arkolith/Insider Trading/COLB/Form 4

Machuca Luis

DirectorCOLUMBIA BANKING SYSTEM, INC. (COLB) · full profile →Form 4 · filed Feb 5, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
2
0 non-derivative · 2 derivative

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 4, 2026Grant(A)562$31.12$17K48K
Dec 3, 2025Grant(A)65$28.17$2K47K

Transaction Codes

A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001133099-26-000003) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML