Columbia Banking System, Inc. (COLB)
Nasdaq: COLB · State Commercial Banks · Tacoma, WA · filing with the SEC since 1996
Grade5.8
◀ Past 6.2● Present 5.1▶ Future 6.0
Who owns Columbia Banking System, Inc.
As filed with the SECHolders of 5% or more
1
Vanguard Capital Management holds 5.24% of Common Stock, as its SCHEDULE 13G filed Apr 29, 2026 says.
Directors and officers
25
report now, of 50 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
State Street Corporation
SCHEDULE 13G · filed May 13, 2025 · COMMON STOCK · reported falling below 5%, from 5.2% in Feb 4, 2025
Wellington Management Group LLP
SCHEDULE 13G/A · filed Aug 13, 2026 · Common Stock · reported falling below 5%, from 6.1% in Feb 10, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What COLB reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Columbia Banking Systems and Pacific Premier Bancorp Merger
A company bought · acquisition · Aug 2025 · owns, named in the 10-K filed Feb 26, 2026
Umpqua Bank and Columbia Banking System Merger
A company bought · acquisition · Dec 2023 · owns, named in the 10-K filed Feb 26, 2026
25 subsidiaries in 2 countries, from the list filed with the 10-K filed Feb 26, 2026.
Insider tradesForm 4
14sales
1purchases
2sales on a scheduled plan
5people selling
$1.0Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 30, 2025 to Oct 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 50 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Gardner Steven R | director | 8 | $700,000 | 0 | 0 | $0 |
| Moore Devine David | EVP Chief Marketing Officer | 2 | $100,000 | 0 | 0 | $0 |
| Nixon Torran B | Senior Executive VP | 2 | $100,000 | 2 | 0 | $0 |
| Deer Aaron James | EVP Chief Strategy/Innov Offcr | 0 | $0 | 0 | 1 | $0 |
| Lakely Brock | EVP, Chief Accounting Officer | 1 | $0 | 0 | 0 | $0 |
| Baruffi Kumi Yamamoto | EVP General Counsel, Corp Sec | 1 | $0 | 0 | 0 | $0 |