§ BANKING
USD · Banking

COLB

COLUMBIA BANKING SYSTEM INC
USDSector · BankingBeta · 0.61
LAST
n/a
n/aPREV CLOSE · n/a
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX

§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY

13F FLOW
272 increased/new, 201 decreased/exited (13F)
AC 13F Analysis

§ 04 · FUNDAMENTALS · THE BOOKS

P/E12.9P/B1.07
EPS (TTM)2.58Dividend5.54%
§ 05 · WHO OWNS IT
Top institutional holders
All holders →
FundShares% portΔ Q/Q
BlackRock, Inc.27.1M0.0%+1%
WELLINGTON MANAGEMENT GROUP LLP14.9M0.1%−17%
VANGUARD PORTFOLIO MANAGEMENT LLC14.3Mn/an/a
Dimensional Fund Advisors13.5M0.1%+3%
VANGUARD CAPITAL MANAGEMENT LLC13.2Mn/an/a
State Street12.5M0.0%−3%
◇ AC INTELLIGENCE

Top institutional owners for COLB as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.

§ 06 · WHO OWNS IT · BY STRATEGY

OTHER47.6% · 408 holders
PASSIVE / INDEX17.2% · 11 holders
QUALITY / COMPOUNDER15.0% · 27 holders
DEALER / BANK12.6% · 37 holders
INCOME / DEFENSIVE2.7% · 28 holders
TACTICAL / MACRO1.8% · 4 holders
DEEP VALUE1.2% · 3 holders
SYSTEMATIC / QUANT0.9% · 6 holders
GROWTH / MOMENTUM0.1% · 1 holder
◇ AC INTELLIGENCE

Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.

§ 07 · INSIDER ACTIVITY · LAST 180 DAYS

NO INSIDER FILINGS
◇ AC INTELLIGENCE

No Form 4 filings on record for COLB in the last 180 days.

§ 08 · COVERAGE · OUR RECENT NOTES

No notes mention COLB yet.