COLB Historical Stock Prices & CSV Downloads

Columbia Banking System, Inc. (COLB), daily historical prices. Prices in USD.
Date	Open	High	Low	Close		Volume
Nov 2, 2026	30.88	31.46	30.83	31.24	31.24	3,473,148
Oct 30, 2026	31.06	31.13	30.43	30.70	30.70	2,784,300
Oct 29, 2026	31.13	31.41	30.83	31.01	31.01	2,215,300
Oct 28, 2026	31.14	31.24	30.45	30.72	30.72	2,685,700
Oct 27, 2026	31.24	31.24	30.83	31.04	31.04	2,887,100
Oct 26, 2026	30.85	31.24	30.85	31.06	31.06	3,402,000
Oct 23, 2026	30.39	31.06	30.20	30.86	30.86	5,566,100
Oct 22, 2026	29.17	29.90	28.97	29.89	29.89	3,373,000
Oct 21, 2026	29.11	29.24	28.91	29.20	29.20	2,287,700
Oct 20, 2026	28.39	29.16	28.39	28.99	28.99	2,122,100
Oct 19, 2026	28.36	28.51	28.26	28.33	28.33	2,218,600
Oct 16, 2026	28.75	29.34	28.38	28.44	28.44	3,695,800
Oct 15, 2026	28.15	28.65	27.98	28.63	28.63	2,249,200
Oct 14, 2026	27.73	28.10	27.65	28.03	28.03	2,984,200
Oct 13, 2026	28.58	28.75	28.04	28.23	28.23	2,933,200
Oct 12, 2026	28.39	28.64	28.32	28.51	28.51	1,795,100
Oct 9, 2026	28.51	28.53	28.19	28.37	28.37	1,598,500
Oct 8, 2026	28.07	28.55	27.91	28.53	28.53	3,449,600
Oct 7, 2026	28.91	28.91	27.96	28.26	28.26	3,195,000
Oct 6, 2026	28.97	29.17	28.75	28.89	28.89	2,431,200
Oct 5, 2026	29.00	29.10	28.61	28.84	28.84	2,597,800
Oct 2, 2026	28.95	29.25	28.80	28.92	28.92	2,376,600
Oct 1, 2026	28.42	28.83	27.96	28.73	28.73	3,302,100
Sep 30, 2026	28.70	29.00	28.49	28.60	28.60	2,446,900
Sep 29, 2026	29.07	29.20	28.52	28.69	28.69	3,575,300

Historical stock data.