Kumi Yamamoto Baruffi

CIK 1619728 · View on SEC EDGAR ↗

Insider

First SEC filing: March 20, 2026 · Latest: March 20, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Compensation Executive pay disclosed in company proxy statements.

Insider at

COLB buying June 30, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 79 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

79 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 13, 2026	COLB	F	937	$26.23	$24,578	53,715 Direct	-1.71%	Disposed	18.2% (price as of 2026-08-21)
March 1, 2026	COLB	F	1,799	$28.45	$51,182	52,271 Direct	-3.33%	Disposed	9.0% (price as of 2026-08-21)
Feb. 18, 2026	COLB	A	8,322	$31.24	$259,979	15,464 Direct	+116.52%	Acquired	-0.8% (price as of 2026-08-21)
Feb. 15, 2026	COLB	F	1,036	$31.49	$32,624	54,070 Direct	-1.88%	Disposed	-1.5% (price as of 2026-08-21)
Feb. 2, 2026	COLB	F	2,110	$29.69	$62,646	55,106 Direct	-3.69%	Disposed	4.4% (price as of 2026-08-21)
Feb. 2, 2026	COLB	A	5,093	$29.69	$151,211	57,216 Direct	+9.77%	Acquired	4.4% (price as of 2026-08-21)
Jan. 20, 2026	COLB	F	1,508	$28.35	$42,752	52,123 Direct	-2.81%	Disposed	9.4% (price as of 2026-08-21)
Jan. 20, 2026	COLB	D	632	—	—	53,631 Direct	-1.16%	Disposed	(price as of 2026-08-21)
Feb. 28, 2025	COLB	F	1,799	$26.73	$48,087	54,263 Direct	-3.21%	Disposed	16.0% (price as of 2026-08-21)
Feb. 25, 2025	COLB	A	3,571	$26.60	$94,989	20,852 Direct	+20.66%	Acquired	16.6% (price as of 2026-08-21)
Feb. 25, 2025	COLB	A	3,571	$26.60	$94,989	17,281 Direct	+26.05%	Acquired	16.6% (price as of 2026-08-21)
Feb. 25, 2025	COLB	A	7,142	$26.60	$189,977	7,142 Direct	—	Acquired	16.6% (price as of 2026-08-21)
Feb. 14, 2025	COLB	F	1,031	$27.41	$28,260	56,062 Direct	-1.81%	Disposed	13.1% (price as of 2026-08-21)
Feb. 14, 2025	COLB	F	442	$27.41	$12,115	57,093 Direct	-0.77%	Disposed	13.1% (price as of 2026-08-21)
Feb. 14, 2025	COLB	A	1,012	$27.41	$27,739	57,535 Direct	+1.79%	Acquired	13.1% (price as of 2026-08-21)
Jan. 1, 2025	COLB	F	772	$27.01	$20,852	56,523 Direct	-1.35%	Disposed	14.8% (price as of 2026-08-21)
Jan. 1, 2025	COLB	F	689	$27.01	$18,610	57,295 Direct	-1.19%	Disposed	14.8% (price as of 2026-08-21)
March 1, 2024	COLB	A	6,855	$17.87	$122,499	13,710 Direct	+100.00%	Acquired	73.5% (price as of 2026-08-21)
March 1, 2024	COLB	A	6,855	$17.87	$122,499	6,855 Direct	—	Acquired	73.5% (price as of 2026-08-21)
March 1, 2024	COLB	A	13,710	$17.87	$244,998	57,984 Direct	+30.97%	Acquired	73.5% (price as of 2026-08-21)
Feb. 15, 2024	COLB	A	1,012	$19.01	$19,238	44,274 Direct	+2.34%	Acquired	63.1% (price as of 2026-08-21)
Feb. 15, 2024	COLB	A	673	$19.01	$12,794	43,262 Direct	+1.58%	Acquired	63.1% (price as of 2026-08-21)
Jan. 1, 2024	COLB	F	461	$26.68	$12,299	42,589 Direct	-1.07%	Disposed	16.2% (price as of 2026-08-21)
Jan. 1, 2024	COLB	F	461	$26.68	$12,299	43,050 Direct	-1.06%	Disposed	16.2% (price as of 2026-08-21)
June 30, 2023	COLB	P	854	$18.25	$15,586	43,511 Direct	+2.00%	Acquired	69.9% (price as of 2026-08-21)
March 27, 2023	COLB	F	507	$20.81	$10,551	42,657 Direct	-1.17%	Disposed	49.0% (price as of 2026-08-21)
Feb. 28, 2023	COLB	A	1,520	—	—	43,164 Direct	+3.65%	Acquired	(price as of 2026-08-21)
Feb. 28, 2023	COLB	A	1,702	—	—	41,644 Direct	+4.26%	Acquired	(price as of 2026-08-21)
Feb. 28, 2023	COLB	A	1,020	—	—	39,942 Direct	+2.62%	Acquired	(price as of 2026-08-21)
Feb. 28, 2023	COLB	A	1,020	—	—	38,922 Direct	+2.69%	Acquired	(price as of 2026-08-21)
Feb. 21, 2023	COLB	A	3,948	—	—	37,901 Direct	+11.63%	Acquired	(price as of 2026-08-21)
Feb. 21, 2023	COLB	A	7,898	—	—	33,953 Direct	+30.31%	Acquired	(price as of 2026-08-21)
Feb. 21, 2023	COLB	F	609	$30.77	$18,739	26,055 Direct	-2.28%	Disposed	0.8% (price as of 2026-08-21)
Feb. 21, 2023	COLB	A	1,456	—	—	26,664 Direct	+5.78%	Acquired	(price as of 2026-08-21)
Feb. 15, 2023	COLB	F	458	$32.05	$14,679	25,208 Direct	-1.78%	Disposed	-3.3% (price as of 2026-08-21)
Feb. 15, 2023	COLB	A	1,012	$32.05	$32,435	25,666 Direct	+4.10%	Acquired	-3.3% (price as of 2026-08-21)
Feb. 15, 2023	COLB	F	305	$32.05	$9,775	24,654 Direct	-1.22%	Disposed	-3.3% (price as of 2026-08-21)
Feb. 15, 2023	COLB	A	673	$32.05	$21,570	24,959 Direct	+2.77%	Acquired	-3.3% (price as of 2026-08-21)
Feb. 15, 2023	COLB	F	389	$32.05	$12,467	24,286 Direct	-1.58%	Disposed	-3.3% (price as of 2026-08-21)
Feb. 15, 2023	COLB	A	859	$32.05	$27,531	24,675 Direct	+3.61%	Acquired	-3.3% (price as of 2026-08-21)
Dec. 30, 2022	COLB	P	232	$26.84	$6,227	23,816 Direct	+0.98%	Acquired	15.5% (price as of 2026-08-21)
June 30, 2022	COLB	P	446	$25.79	$11,502	23,584 Direct	+1.93%	Acquired	20.2% (price as of 2026-08-21)
March 25, 2022	COLB	F	188	$34.07	$6,405	23,138 Direct	-0.81%	Disposed	-9.0% (price as of 2026-08-21)
March 7, 2022	COLB	F	385	$32.72	$12,597	23,326 Direct	-1.62%	Disposed	-5.2% (price as of 2026-08-21)
March 7, 2022	COLB	A	1,592	$32.72	$52,090	23,711 Direct	+7.20%	Acquired	-5.2% (price as of 2026-08-21)
Feb. 28, 2022	COLB	F	289	$36.63	$10,586	22,119 Direct	-1.29%	Disposed	-15.4% (price as of 2026-08-21)
Feb. 15, 2022	COLB	A	470	$36.75	$17,272	22,408 Direct	+2.14%	Acquired	-15.6% (price as of 2026-08-21)
Feb. 15, 2022	COLB	A	600	$36.75	$22,050	21,938 Direct	+2.81%	Acquired	-15.6% (price as of 2026-08-21)
Jan. 4, 2022	COLB	P	186	$29.45	$5,478	21,338 Direct	+0.88%	Acquired	5.3% (price as of 2026-08-21)
July 6, 2021	COLB	P	304	$31.64	$9,619	21,152 Direct	+1.46%	Acquired	-2.0% (price as of 2026-08-21)
March 26, 2021	COLB	F	126	$45.11	$5,684	20,848 Direct	-0.60%	Disposed	-31.3% (price as of 2026-08-21)
March 18, 2021	COLB	A	2,360	—	—	21,550 Direct	+12.30%	Acquired	(price as of 2026-08-21)
March 18, 2021	COLB	F	576	$35.90	$20,678	20,974 Direct	-2.67%	Disposed	-13.6% (price as of 2026-08-21)
Feb. 26, 2021	COLB	F	161	$44.29	$7,131	19,190 Direct	-0.83%	Disposed	-30.0% (price as of 2026-08-21)
Feb. 22, 2021	COLB	F	255	$45.93	$11,712	19,351 Direct	-1.30%	Disposed	-32.5% (price as of 2026-08-21)
Feb. 15, 2021	COLB	A	621	$43.09	$26,759	19,606 Direct	+3.27%	Acquired	-28.0% (price as of 2026-08-21)
Jan. 7, 2021	COLB	P	219	$24.06	$5,269	18,985 Direct	+1.17%	Acquired	28.9% (price as of 2026-08-21)
July 2, 2020	COLB	P	337	$25.51	$8,597	18,766 Direct	+1.83%	Acquired	21.5% (price as of 2026-08-21)
Feb. 28, 2020	COLB	F	114	$33.20	$3,785	18,888 Direct	-0.60%	Disposed	-6.6% (price as of 2026-08-21)
Feb. 27, 2020	COLB	F	459	$40.69	$18,677	18,429 Direct	-2.43%	Disposed	-23.8% (price as of 2026-08-21)
Feb. 27, 2020	COLB	A	1,955	$40.69	$79,549	19,002 Direct	+11.47%	Acquired	-23.8% (price as of 2026-08-21)
Feb. 27, 2020	COLB	A	1,955	—	—	19,002 Direct	+11.47%	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	COLB	F	320	$37.48	$11,994	17,047 Direct	-1.84%	Disposed	-17.3% (price as of 2026-08-21)
Feb. 21, 2020	COLB	F	152	$38.69	$5,881	17,367 Direct	-0.87%	Disposed	-19.9% (price as of 2026-08-21)
Jan. 3, 2020	COLB	P	137	$32.81	$4,495	17,519 Direct	+0.79%	Acquired	-5.5% (price as of 2026-08-21)
July 1, 2019	COLB	P	259	$32.56	$8,433	17,382 Direct	+1.51%	Acquired	-4.8% (price as of 2026-08-21)
March 27, 2019	COLB	A	2,575	$32.01	$82,426	17,123 Direct	+17.70%	Acquired	-3.1% (price as of 2026-08-21)
March 25, 2019	COLB	F	200	$31.07	$6,214	14,548 Direct	-1.36%	Disposed	-0.2% (price as of 2026-08-21)
Feb. 27, 2019	COLB	A	2,627	$36.29	$95,334	15,501 Direct	+20.41%	Acquired	-14.6% (price as of 2026-08-21)
Feb. 27, 2019	COLB	F	753	$36.29	$27,326	14,748 Direct	-4.86%	Disposed	-14.6% (price as of 2026-08-21)
Feb. 27, 2019	COLB	F	434	$36.29	$15,750	15,067 Direct	-2.80%	Disposed	-14.6% (price as of 2026-08-21)
Feb. 27, 2019	COLB	A	2,627	$36.29	$95,334	15,501 Direct	+20.41%	Acquired	-14.6% (price as of 2026-08-21)
Feb. 22, 2019	COLB	F	293	$38.32	$11,228	12,874 Direct	-2.23%	Disposed	-19.1% (price as of 2026-08-21)
Jan. 2, 2019	COLB	P	210	$32.66	$6,859	13,167 Direct	+1.62%	Acquired	-5.1% (price as of 2026-08-21)
Nov. 30, 2018	COLB	F	305	$40.68	$12,407	12,957 Direct	-2.30%	Disposed	-23.8% (price as of 2026-08-21)
July 5, 2018	COLB	P	374	$36.81	$13,767	13,253 Direct	+2.90%	Acquired	-15.8% (price as of 2026-08-21)
March 23, 2018	COLB	F	120	$41.22	$4,946	12,879 Direct	-0.92%	Disposed	-24.8% (price as of 2026-08-21)
Feb. 28, 2018	COLB	F	534	$43.44	$23,197	12,999 Direct	-3.95%	Disposed	-28.6% (price as of 2026-08-21)
Feb. 28, 2018	COLB	A	2,276	$42.44	$96,593	13,533 Direct	+20.22%	Acquired	-26.9% (price as of 2026-08-21)
Feb. 28, 2018	COLB	A	1,909	$41.78	$79,758	11,257 Direct	+20.42%	Acquired	-25.8% (price as of 2026-08-21)
Jan. 8, 2018	COLB	P	174	$36.63	$6,374	9,476 Direct	+1.87%	Acquired	-15.4% (price as of 2026-08-21)
Dec. 1, 2017	COLB	F	206	$46.31	$9,540	9,302 Direct	-2.17%	Disposed	-33.0% (price as of 2026-08-21)
July 3, 2017	COLB	A	317	$35.87	$11,371	9,508 Direct	+3.45%	Acquired	-13.6% (price as of 2026-08-21)
Feb. 22, 2017	COLB	A	1,700	$41.25	$70,125	9,191 Direct	+22.69%	Acquired	-24.8% (price as of 2026-08-21)
Jan. 6, 2017	COLB	A	249	$24.68	$6,145	7,491 Direct	+3.44%	Acquired	25.6% (price as of 2026-08-21)
July 1, 2016	COLB	A	446	$25.25	$11,262	7,242 Direct	+6.56%	Acquired	22.8% (price as of 2026-08-21)
Feb. 24, 2016	COLB	A	2,153	—	—	6,796 Direct	+46.37%	Acquired	(price as of 2026-08-21)
Jan. 14, 2016	COLB	A	198	$29.26	$5,793	4,643 Direct	+4.45%	Acquired	6.0% (price as of 2026-08-21)
July 2, 2015	COLB	A	308	$24.66	$7,595	4,445 Direct	+7.45%	Acquired	25.7% (price as of 2026-08-21)
March 25, 2015	COLB	A	1,637	—	—	4,137 Direct	+65.48%	Acquired	(price as of 2026-08-21)
Dec. 1, 2014	COLB	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 18, 2026	COLB	Restricted Stock Unit	Common Stock (8,322)	—	—	8,322	Acquired
Feb. 25, 2025	COLB	Performance Restricted Stock Unit	Common Stock (3,571)	—	—	3,571	Acquired
Feb. 25, 2025	COLB	Performance Restricted Stock Unit	Common Stock (3,571)	—	—	3,571	Acquired
Feb. 25, 2025	COLB	Restricted Stock Unit	Common Stock (7,142)	—	—	7,142	Acquired
March 1, 2024	COLB	Performance Restricted Stock Unit	Common Stock (6,855)	—	—	6,855	Acquired
March 1, 2024	COLB	Performance Restricted Stock Unit	Common Stock (6,855)	—	—	6,855	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

COLB

General Counsel

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2017	$253,077	—	$145,558	—	$136,783	$141,430	$27,019	$703,867

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.