Baruffi Kumi Yamamoto

EVP General Counsel, Corp Sec | General Counsel, Corporate Sec | EVP General Counsel +1 more

1 company

Weak

Trades Analyzed

12M Win Rate

0.0%

Avg 3M Return

-5.8%

Avg 12M Return

-13.7%

Baruffi Kumi Yamamoto is an EVP General Counsel, Corp Sec at COLUMBIA BANKING SYSTEM, INC.. Recent SEC Form 4 filings include 10 buys and 0 sells.

Estimated insider holdings value: $1.6M based on current market prices.

Holdings by Company

COLBMar 13, 2026

Current Shares53.7K

Value$1.61M

Net Activity+3.7K

Bought: 3.7KSold: 0

Showing 10 filings

Date	Ticker	Role	Type	Shares	Price	Value	Chg%	3M	12M
Jun 30, 2023	COLB Columbia Banking System, Inc.	General Counsel, Corporate Sec	Buy	854	$18.25	$15,585.50	+2.0%	-3.2%	-1.9%
Dec 30, 2022	COLB Columbia Banking System, Inc.	EVP General Counsel	Buy	232	$26.84	$6,226.88	+1.0%	-30.4%	-11.5%
Jun 30, 2022	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	446	$25.79	$11,502.34	+1.9%	+3.4%	-27.8%
Jan 4, 2022	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	186	$29.45	$5,477.70	+0.9%	-6.9%	-10.4%
Jul 6, 2021	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	304	$31.64	$9,618.56	+1.5%	+7.9%	-16.8%
Jan 7, 2021	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	219	$24.06	$5,269.14	+1.2%	-	-
Jul 2, 2020	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	337	$25.51	$8,596.87	+1.8%	-	-
Jan 3, 2020	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	137	$32.81	$4,494.97	+0.8%	-	-
Jul 1, 2019	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	259	$32.56	$8,433.04	+1.5%	-	-
Jan 2, 2019	COLB Columbia Banking System, Inc.	EVP And General Counsel	Buy	210	$32.66	$6,858.60	+1.6%	-	-