Logo image of COLB

COLUMBIA BANKING SYSTEM INC (COLB) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:COLB - US1972361026 - Common Stock

28.08 USD
+0.36 (+1.3%)
Last: 12/1/2025, 8:00:00 PM
28.08 USD
0 (0%)
After Hours: 12/1/2025, 8:00:00 PM
COLB Ownership Chart.COLB Ownership Chart: showing Insider, Institutional ownership and shares available to the public.COLB Ownership.InsiderInstitutionalPublic



Shares Outstanding299.12M
Float297.19M
Float Short Interest Percentage3.21%
Owners (insider)0.5%
Owners (institutional)72.06%
Owners (insider) change2.6%
Owners (institutional) change37.34%
COLB Institutional Ownership HistoryCOLB Institutional Ownership HistoryCOLB Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M 200M 250M
COLB Historical Insider Transactions ChartCOLB Historical Insider Buy and Sell Transactions ChartCOLB Historical Insider Transactions Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 0 20K -20K 40K -40K -60K
Date Name Type Shares Price Amount
Aug 31, 2025 MITCHELL M CHRISTIAN Grant 37960 0.00 $ 0.00
Aug 31, 2025 STUDENMUND JAYNIE M Grant 21701 0.00 $ 0.00
May 15, 2025 Terry Hilliard C. III Grant 3382 0.00 $ 0.00
May 15, 2025 Varnado Anddria Grant 3382 0.00 $ 0.00
May 15, 2025 POPE MARIA M Grant 3382 0.00 $ 0.00
May 15, 2025 Finkelstein Mark A Grant 3382 0.00 $ 0.00
May 15, 2025 Forrest Eric Grant 3382 0.00 $ 0.00
May 15, 2025 Lund Randal Lee Grant 3382 0.00 $ 0.00
May 15, 2025 MACHUCA LUIS Grant 3382 0.00 $ 0.00
May 15, 2025 Numata S Mae Fujita Grant 3382 0.00 $ 0.00
May 15, 2025 SCHULTZ JOHN F Grant 3382 0.00 $ 0.00
May 15, 2025 SEATON ELIZABETH WHITEHEAD Grant 3382 0.00 $ 0.00
Mar 4, 2025 Nixon Torran B Open Market Sale 4481 25.99 $ 116,461.19
Feb 28, 2025 Stein Clint Option Excercise 9789 26.73 $ 261,659.97
Feb 28, 2025 BARUFFI KUMI YAMAMOTO Option Excercise 1799 26.73 $ 48,087.27
Feb 28, 2025 Anderson Drew K Option Excercise 3071 26.73 $ 82,087.83
Feb 28, 2025 O'HAVER CORT L Option Excercise 18503 26.73 $ 494,585.19
Feb 28, 2025 Namdar Frank Option Excercise 2775 26.73 $ 74,175.75
Feb 28, 2025 Moore Devine David Option Excercise 839 26.73 $ 22,426.47
Feb 28, 2025 Merrywell Christopher Option Excercise 3230 26.73 $ 86,337.90
Feb 28, 2025 FARNSWORTH RON L Option Excercise 6003 26.73 $ 160,460.19
Feb 28, 2025 Dow Lisa Option Excercise 1285 26.73 $ 34,348.05
Feb 28, 2025 Deer Aaron James Option Excercise 918 26.73 $ 24,538.14
Feb 28, 2025 White Lisa M Option Excercise 2119 26.73 $ 56,640.87
Feb 28, 2025 OGNALL ANDREW H Option Excercise 3420 26.73 $ 91,416.60
Feb 28, 2025 Nixon Torran B Option Excercise 7067 26.73 $ 188,900.91
Feb 25, 2025 White Lisa M Grant 6578 26.60 $ 174,974.80
Feb 14, 2025 OGNALL ANDREW H Option Excercise 1337 27.41 $ 36,647.17
Feb 14, 2025 Moore Devine David Grant 990 27.41 $ 27,135.90
Feb 14, 2025 Moore Devine David Option Excercise 908 27.41 $ 24,888.28
Feb 14, 2025 Merrywell Christopher Grant 1673 27.41 $ 45,856.93
Feb 14, 2025 Merrywell Christopher Option Excercise 2365 27.41 $ 64,824.65
Feb 14, 2025 Dow Lisa Grant 921 27.41 $ 25,244.61
Feb 14, 2025 Dow Lisa Option Excercise 1003 27.41 $ 27,492.23
Feb 14, 2025 Deer Aaron James Grant 1304 27.41 $ 35,742.64
Feb 14, 2025 Deer Aaron James Option Excercise 1039 27.41 $ 28,478.99
Feb 14, 2025 BARUFFI KUMI YAMAMOTO Grant 1012 27.41 $ 27,738.92
Feb 14, 2025 BARUFFI KUMI YAMAMOTO Option Excercise 1473 27.41 $ 40,374.93
Feb 14, 2025 FARNSWORTH RON L Option Excercise 2240 27.41 $ 61,398.40
Feb 14, 2025 O'HAVER CORT L Option Excercise 5944 27.41 $ 162,925.04
Feb 14, 2025 Nixon Torran B Option Excercise 2098 27.41 $ 57,506.18
Feb 14, 2025 Namdar Frank Option Excercise 1311 27.41 $ 35,934.51
Feb 14, 2025 White Lisa M Option Excercise 619 27.41 $ 16,966.79
Feb 14, 2025 Stein Clint Grant 4759 27.41 $ 130,444.19
Feb 14, 2025 Stein Clint Option Excercise 5795 27.41 $ 158,840.95
Jan 1, 2025 BARUFFI KUMI YAMAMOTO Option Excercise 1461 27.01 $ 39,461.61
Jan 1, 2025 Stein Clint Option Excercise 12428 27.01 $ 335,680.28
Jan 1, 2025 Moore Devine David Option Excercise 1441 27.01 $ 38,921.41
Jan 1, 2025 Merrywell Christopher Option Excercise 3527 27.01 $ 95,264.27
Jan 1, 2025 Dow Lisa Option Excercise 1327 27.01 $ 35,842.27
Jan 1, 2025 Deer Aaron James Option Excercise 1884 27.01 $ 50,886.84