COLB

UNKNOWN

COLUMBIA BANKING SYSTEM, INC.

CIK: 0000887343

Strong Sell (70% confidence)

Last activity: 3 weeks ago

Financial Metrics

As of Dec 31, 2024 (10-K)

Net Income $534.00M

Insider	Sells	Net Value	Holdings
GARDNER STEVEN R DIRECTOR	1	-$404K	Holdings: - Value: -
Nixon Torran B Senior Executive VP	2	-$128K	98,229 shares $2.83M
BARUFFI KUMI YAMAMOTO EVP General Counsel, Corp Sec	1	-$25K	53,715 shares $1.41M
Lakely Brock EVP, Chief Accounting Officer	1	-$6K	11,104 shares $291K

SELL BARUFFI KUMI YAMAMOTO (EVP General Counsel, Corp Sec)

937 shares @ $26.23

$25K

Mar 13, 2026

Conviction: | View SEC Filing →

SELL Lakely Brock (EVP, Chief Accounting Officer)

211 shares @ $26.23

$6K

Mar 13, 2026

Conviction: | View SEC Filing →

SELL Nixon Torran B (Senior Executive VP)

2,240 shares @ $28.85

$65K

Mar 4, 2026

Conviction: | View SEC Filing →

SELL Nixon Torran B (Senior Executive VP)

2,241 shares @ $28.25

$63K

Mar 3, 2026

Conviction: | View SEC Filing →

SELL GARDNER STEVEN R (DIRECTOR)

13,725 shares @ $29.43

$404K

Jan 30, 2026

Conviction: | View SEC Filing →

• This is AI-generated analysis for educational purposes only, not financial advice.

• Insider trading data is derived from SEC Form 4 filings and may contain errors.

• Always conduct your own research and consult qualified financial advisors before making investment decisions.