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$COLB All transactions

COLUMBIA BANKING SYSTEM, INC.

▼ SELL

$ Value

$25K

Shares

937

Price

$26

Filed

Mar 17

Insider

Name

BARUFFI KUMI YAMAMOTO

Title

EVP General Counsel, Corp Sec

CIK

0001619728

Roles

Officer

Transaction Details

Transaction Date

2026-03-13

Code

S

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

53,715

Footnotes

Restricted Stock Units convert into common stock on a one-for-one basis. On February 25, 2025, the reporting person was granted 7,142 Restricted Stock Units, which vest in three annual installments beginning on March 13, 2026.

Filing Info

Accession No.

0001619728-26-000003

Form Type

4

Issuer CIK

0000887343

BARUFFI KUMI YAMAMOTO's History

Date Ticker Type Value
2026-03-13 COLB M $62K
2026-03-13 COLB $25K
2026-03-13 COLB M $0
2026-03-13 COLB F $25K
2026-03-01 COLB F $51K
2026-02-18 COLB A $260K
2026-02-15 COLB F $33K
2026-02-02 COLB A $151K
2026-02-02 COLB F $63K
2026-01-20 COLB D $0

Other Insiders at COLB (90d)

Insider Bought Sold Last
MACHUCA LUIS 2026-03-16
GARDNER STEVEN R $404K 2026-01-30
Stein Clint
Chair, CEO, President
2026-03-13
Stein Clint
Chair, President, CEO
2026-03-01
OGNALL ANDREW H
EVP Chief Risk Officer
2026-03-13
BARUFFI KUMI YAMAMOTO
EVP General Counsel, Corp Sec
2026-03-13
Nixon Torran B
Senior Executive VP
$128K 2026-03-13
Lakely Brock
EVP, Chief Accounting Officer
$6K 2026-04-15
Namdar Frank
EVP Chief Credit Officer
2026-03-13
Merrywell Christopher
Senior Executive VP
2026-03-13
Moore Devine David
EVP Chief Marketing Officer
2026-03-13
Deer Aaron James
EVP Chief Strategy/Innov Offcr
2026-03-13
Giem Judi
EVP CHRO
2026-02-18
Anderson Drew K
EVP Chief Admin Officer
2026-03-13
Seda Ivan A
EVP, Chief Financial Officer
2026-02-18