NASDAQ:COLB | Stock Price History | COLUMBIA BANKING SYSTEM, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1992-06-16 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.43$6.37$11.80$21.86$40.52$75.091992-06-162026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$30.35162,845
2026-09-03$30.11208,542
2026-09-02$29.45349,457
2026-09-01$29.76393,833
2026-08-31$30.13236,743
2026-08-28$30.34199,353
2026-08-27$30.69$63.912,207,900$30.46153,217
2026-08-26$30.71$63.952,523,700$30.56156,838
2026-08-25$30.53$63.572,332,600$30.80158,070
2026-08-24$30.64$63.802,427,600$30.85128,850
2026-08-21$30.81$64.161,991,400$31.04161,085
2026-08-20$30.84$64.222,771,800$30.94212,520
2026-08-19$31.07$64.705,157,400$32.23352,414
2026-08-18$32.14$66.922,956,600$32.50226,650
2026-08-17$32.34$67.342,609,400$32.67182,622
2026-08-14$32.69$68.072,543,400$32.50158,787
2026-08-13$32.44$67.554,270,300$32.49326,545
2026-08-12$32.25$67.153,109,000$31.91293,037
2026-08-11$31.71$66.032,056,100$31.32176,889
2026-08-10$31.26$65.092,429,600$31.17197,447
2026-08-07$31.24$65.052,881,800$31.03281,324
2026-08-06$31.03$64.611,871,200$31.68189,110
2026-08-05$31.35$65.281,925,000$31.88203,362
2026-08-04$31.78$66.182,329,500$31.63231,201
2026-08-03$31.50$65.592,583,700$31.49312,943
2026-07-31$31.27$65.112,966,200$31.51346,139
2026-07-30$31.25$65.074,174,100$31.06424,431
2026-07-29$30.78$64.092,677,000$31.02303,512
2026-07-28$31.27$65.112,873,300$31.00263,353
2026-07-27$30.90$64.342,940,800$31.35233,483
2026-07-24$31.15$64.865,851,500$31.20674,580
2026-07-23$32.26$67.174,889,100$32.12631,117
2026-07-22$32.63$67.952,549,600$32.84270,766
2026-07-21$32.85$68.402,551,100$32.78328,670
2026-07-20$32.80$68.302,851,800$33.25333,582
2026-07-17$33.24$69.223,224,000
2026-07-16$33.61$69.993,500,800
2026-07-15$32.57$67.823,430,200
2026-07-14$32.25$67.152,074,000
2026-07-13$31.98$66.592,011,000
2026-07-10$32.05$66.741,746,300
2026-07-09$31.82$66.262,467,500
2026-07-08$31.27$65.112,613,800
2026-07-07$32.12$66.882,281,200
2026-07-06$32.24$67.132,634,800
2026-07-02$31.72$66.053,434,800
2026-07-01$32.51$67.703,082,300
2026-06-30$32.05$66.742,470,000
2026-06-29$31.99$66.612,640,100
2026-06-26$32.15$66.955,394,500
2026-06-25$32.07$66.782,923,400
2026-06-24$31.53$65.652,354,800
2026-06-23$31.27$65.112,389,100
2026-06-22$30.87$64.282,685,000
2026-06-18$30.55$63.616,000,400
2026-06-17$30.05$62.573,700,800
2026-06-16$30.88$64.302,463,200
2026-06-15$30.95$64.453,584,800
2026-06-12$31.31$65.202,708,400
2026-06-11$30.82$64.182,407,700
2026-06-10$30.32$63.142,757,700
2026-06-09$30.15$62.783,140,100
2026-06-08$29.68$61.804,220,200
2026-06-05$29.66$61.762,249,300
2026-06-04$29.50$61.432,923,400
2026-06-03$28.59$59.532,763,500
2026-06-02$29.18$60.762,816,900
2026-06-01$29.00$60.392,461,700
2026-05-29$29.64$61.723,481,800
2026-05-28$29.64$60.952,683,900
2026-05-27$29.79$61.263,201,400
2026-05-26$30.07$61.832,237,400
2026-05-22$29.73$61.131,438,200
2026-05-21$29.62$60.912,049,500
2026-05-20$29.67$61.012,297,300
2026-05-19$28.73$59.082,671,400
2026-05-18$29.01$59.652,480,500
2026-05-15$28.77$59.163,184,200
2026-05-14$29.12$59.886,210,600
2026-05-13$28.71$59.042,799,300
2026-05-12$29.09$59.822,839,800
2026-05-11$29.42$60.502,974,900
2026-05-08$30.04$61.773,399,000
2026-05-07$29.56$60.782,331,400
2026-05-06$30.20$62.102,667,400
2026-05-05$29.71$61.092,396,300
2026-05-04$29.07$59.782,583,400
2026-05-01$29.56$60.781,835,400
2026-04-30$29.60$60.872,396,200
2026-04-29$29.12$59.882,033,600
2026-04-28$29.62$60.912,351,100
2026-04-27$29.85$61.382,419,700
2026-04-24$29.22$60.083,183,300
2026-04-23$29.65$60.973,066,300
2026-04-22$29.00$59.633,199,500
2026-04-21$29.09$59.821,890,500
2026-04-20$29.68$61.032,243,800
2026-04-17$29.63$60.932,047,100
2026-04-16$28.97$59.571,942,200
2026-04-15$29.10$59.841,550,200