InsiderFlow

BARUFFI KUMI YAMAMOTO

COLB

BARUFFI KUMI YAMAMOTO serves as officer: EVP General Counsel, Corp Sec at Columbia Banking System, Inc. (COLB). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

2 trades

$57.2K

Net Position

Net Seller

$57.2K

Companies Traded

1

COLB

Active Period

Feb 2026 – Mar 2026

2 total trades

Most Recent

Sell COLB

Mar 17, 2026 · $24.6K

BARUFFI KUMI YAMAMOTO's Insider Trading at Columbia Banking System, Inc. (COLB)

Buys

0 · $0.00

Sells

2 · $57.2K

Total Shares Bought

0

Total Shares Sold

1,973

COLB Price Chart
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DateTypeValue
Mar 17, 2026 Sell$24.6K
Feb 15, 2026 Sell$32.6K