Columbia Banking System, Inc. - Common Stock (COLB)

Last Price29.64

Change-0.43 (-1.43%)

NASDAQ· Last Trade: Sep 1st, 3:22 AM EDT

Historical Prices For Columbia Banking System, Inc. - Common Stock (COLB)

Date Range:

2026-06-01 - 2026-09-01

Date	Open	High	Low	Close	Volume	Adjusted Close
8/31/2026	30.13	30.13	29.60	29.64	2,374,958	29.64
8/28/2026	30.41	30.59	30.02	30.07	2,649,683	30.07
8/27/2026	30.51	30.75	30.25	30.69	2,207,898	30.32
8/26/2026	30.67	30.88	30.45	30.71	2,523,705	30.34
8/25/2026	30.90	30.90	30.37	30.53	2,332,553	30.16
8/24/2026	30.81	31.08	30.59	30.64	2,428,266	30.27
8/21/2026	31.01	31.23	30.61	30.81	1,991,411	30.44
8/20/2026	30.97	31.09	30.76	30.84	2,771,869	30.47
8/19/2026	32.19	32.35	30.91	31.07	5,157,395	30.70
8/18/2026	32.37	32.48	32.02	32.14	2,956,601	31.75
8/17/2026	32.69	32.83	32.30	32.34	2,609,410	31.95
8/14/2026	32.46	32.78	32.31	32.69	2,543,430	32.30
8/13/2026	32.50	32.60	32.33	32.44	4,270,340	32.05
8/12/2026	31.88	32.27	31.74	32.25	3,254,452	31.86
8/11/2026	31.29	31.88	31.27	31.71	2,056,100	31.33
8/10/2026	31.19	31.39	30.95	31.26	2,429,587	30.88
8/07/2026	30.94	31.29	30.76	31.24	2,987,425	30.86
8/06/2026	31.64	31.69	31.01	31.03	1,871,177	30.66
8/05/2026	31.93	31.99	31.33	31.35	1,924,961	30.97
8/04/2026	31.65	32.17	31.44	31.78	2,329,462	31.40
8/03/2026	31.43	31.75	31.27	31.50	2,583,658	31.12
7/31/2026	31.50	31.50	30.87	31.27	2,966,165	30.89
7/30/2026	31.06	31.39	31.00	31.25	4,174,064	30.87
7/29/2026	31.09	31.25	30.75	30.78	2,677,176	30.41
7/28/2026	30.90	31.34	30.90	31.27	2,873,261	30.89
7/27/2026	31.37	31.56	30.86	30.90	2,940,804	30.53
7/24/2026	31.04	31.65	30.82	31.15	5,851,567	30.77
7/23/2026	32.25	32.30	31.56	32.26	4,889,136	31.87
7/22/2026	32.90	32.97	32.38	32.63	2,549,564	32.24
7/21/2026	32.80	32.86	32.34	32.85	2,551,064	32.45
7/20/2026	33.33	33.46	32.62	32.80	2,851,790	32.40
7/17/2026	33.40	33.65	32.95	33.24	3,224,009	32.84
7/16/2026	32.59	33.67	32.59	33.61	3,500,895	33.20
7/15/2026	32.32	32.77	32.26	32.57	3,451,618	32.18
7/14/2026	32.09	32.54	32.05	32.25	2,074,036	31.86
7/13/2026	32.11	32.20	31.79	31.98	2,011,002	31.59
7/10/2026	32.00	32.21	31.79	32.05	1,746,336	31.66
7/09/2026	31.48	31.98	31.48	31.82	2,467,470	31.44
7/08/2026	32.03	32.05	30.84	31.27	2,613,822	30.89
7/07/2026	32.34	32.37	32.00	32.12	2,281,197	31.73
7/06/2026	31.73	32.25	31.64	32.24	2,634,823	31.85
7/02/2026	32.63	32.77	31.59	31.72	3,434,800	31.34
7/01/2026	32.20	32.72	31.93	32.51	3,082,274	32.12
6/30/2026	31.92	32.26	31.72	32.05	2,470,034	31.66
6/29/2026	32.08	32.21	31.72	31.99	2,640,052	31.60
6/26/2026	32.12	32.26	31.84	32.15	5,394,530	31.76
6/25/2026	31.58	32.25	31.30	32.07	2,923,448	31.68
6/24/2026	31.29	31.57	31.02	31.53	2,354,833	31.15
6/23/2026	30.80	31.32	30.72	31.27	2,389,144	30.89
6/22/2026	30.56	31.00	30.56	30.87	2,685,048	30.50
6/18/2026	30.31	30.63	30.13	30.55	6,000,393	30.18
6/17/2026	30.78	31.10	29.77	30.05	3,700,847	29.69
6/16/2026	31.16	31.78	30.83	30.88	2,463,156	30.51
6/15/2026	31.75	31.84	30.87	30.95	3,584,813	30.58
6/12/2026	31.00	31.46	30.95	31.31	2,708,402	30.93
6/11/2026	30.39	30.84	30.15	30.82	2,407,730	30.45
6/10/2026	30.20	30.71	30.13	30.32	2,757,736	29.95
6/09/2026	30.00	30.87	29.79	30.15	3,140,122	29.79
6/08/2026	29.74	29.99	29.53	29.68	4,220,197	29.32
6/05/2026	29.56	29.93	29.46	29.66	2,249,271	29.30
6/04/2026	28.87	29.57	28.87	29.50	2,923,354	29.14
6/03/2026	29.04	29.10	28.55	28.59	2,763,526	28.25
6/02/2026	29.00	29.48	28.95	29.18	2,816,870	28.83
6/01/2026	29.28	29.41	28.94	29.00	2,461,674	28.65