BARUFFI KUMI YAMAMOTO Insider Trading Activity

Average Profitability

<0.0001%

Insider Buys Quantity

Insider Buys Sum

$150,728.20

Insider Sells Quantity

Insider Sells Sum

Insider Activity of BARUFFI KUMI YAMAMOTO

According to the SEC Form 4 filings, BARUFFI KUMI YAMAMOTO, being in a position of

EVP General Counsel, Corp Sec at Columbia Banking System, Inc.,
оver the last 12 months, has bought 0 shares, and sold 937 shares for $24,578,
over all time since 2018-01-08, has bought 5442 shares for $150,728, and sold 937 shares for $24,578.

Biography of BARUFFI KUMI YAMAMOTO

No biography is available at this moment.

Statistics of Insider Transactions Last Year

Amount of Insider Buys and Sells by Stocks


Buys	$0	0	0
Sells	$24,578	1	100

Comparison of Insiders on Amount of Buys and Sells

Sector

Industry

Transaction Type

Transaction Date

From

Total Value


2026-03-13	Sale	Columbia Banking System, Inc. COLB	EVP General Counsel, Corp Sec	937 0.0004%	$26.23	$24,578	+15.49%
2023-06-30	Purchase	Columbia Banking System, Inc. COLB	General Counsel, Corporate Sec	854 0.0005%	$18.25	$15,586	+1.73%
2022-12-30	Purchase	Columbia Banking System, Inc. COLB	EVP General Counsel	232 <0.0001%	$26.84	$6,227	-26.67%
2022-06-30	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	446 0.0002%	$25.79	$11,502	+4.43%
2022-01-04	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	186 <0.0001%	$29.45	$5,478	-6.63%
2021-07-06	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	304 0.0004%	$31.64	$9,619	-4.37%
2021-01-07	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	438 0.0002%	$12.03	$5,269	-2.82%
2020-07-02	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	674 0.0009%	$25.51	$17,194	+35.81%
2020-01-03	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	274 0.0003%	$32.81	$8,990	-28.37%
2019-07-01	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	518 0.0006%	$32.56	$16,866	-1.55%
2019-01-02	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	420 0.0005%	$32.66	$13,717	+0.85%
2018-07-05	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	748 0.0009%	$36.81	$27,534	-8.79%
2018-01-08	Purchase	Columbia Banking System, Inc. COLB	EVP and General Counsel	348 0.0004%	$36.63	$12,747	-3.63%

Total: 13

Company

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