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COLB   COLUMBIA BANKING SYSTEM, INC.   |  887343

Available Fillings Total Fillings:1704
Form Type Form Count
8-K 266
UPLOAD 13
S-2/A 2
S-2 1
10-Q 86
S-8 17
CORRESP 16
424B1 1
425 49
3/A 7
SC 13G 25
S-4 9
8-K/A 11
POS AM 3
5 38
ARS 6
10-K 26
4/A 45
S-3MEF 2
SCHEDULE 13G 2
SC 13G/A 53
DEFA14A 10
424B3 9
424B5 2
10-K405 3
10-C 2
11-K 3
DEFM14A 1
144 1
4 880
DEF 14A 29
3 42
10-Q/A 3
S-3ASR 4
EFFECT 14
S-4/A 11
10-K/A 2
DFAN14A 1
S-2MEF 1
S-3 3
PRE 14A 4
S-8 POS 1
Financials Total:394
Form Type Act Filing Date Report Date Action
8-K 34 06/30/2025 06/30/2025 |    |  
8-K 34 05/16/2025 05/16/2025 |    |  
8-K 34 05/15/2025 05/15/2025 |    |  
8-K 34 04/25/2025 04/23/2025 |    |  
8-K 34 04/23/2025 04/23/2025 |    |  
8-K 34 04/23/2025 04/23/2025 |    |  
8-K 34 04/02/2025 03/30/2025 |    |  
8-K 34 03/31/2025 03/31/2025 |    |  
8-K 34 03/27/2025 03/27/2025 |    |  
10-K 34 02/25/2025 12/31/2024 |    |  
Ipos Total:32
Form Type Act Filing Date Report Date Action
CORRESP 12/02/2021 07/01/2025
UPLOAD 11/29/2021 07/01/2025
CORRESP 08/13/2021 07/01/2025
UPLOAD 08/09/2021 07/01/2025
CORRESP 04/21/2017 07/01/2025
CORRESP 03/21/2017 07/01/2025
UPLOAD 03/10/2017 07/01/2025
UPLOAD 02/01/2013 07/01/2025
CORRESP 01/29/2013 07/01/2025
CORRESP 01/29/2013 07/01/2025
Form Type Act Filing Date Report Date Action
3 06/09/2025 06/02/2025
4 06/03/2025 06/02/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
4 05/16/2025 05/15/2025
Form Type Act Filing Date Report Date Action
DEF 14A 34 04/03/2025 05/15/2025
DEF 14A 34 03/27/2024 05/08/2024
DEF 14A 34 04/06/2023 07/01/2025
SC 13G 34 02/10/2023 07/01/2025
SC 13G 34 01/30/2023 07/01/2025
SC 13G 34 01/20/2023 07/01/2025
DEF 14A 34 03/18/2022 04/27/2022
SC 13G 34 02/10/2022 07/01/2025
DEF 14A 34 04/12/2021 05/26/2021
DEF 14A 34 04/17/2020 12/31/2019
Form Type Act Filing Date Report Date Action
8-K 34 06/30/2025 06/30/2025 |    |  
8-K 34 05/16/2025 05/16/2025 |    |  
8-K 34 05/15/2025 05/15/2025 |    |  
425 04/25/2025 07/01/2025
8-K 34 04/25/2025 04/23/2025 |    |  
425 04/25/2025 07/01/2025
425 04/23/2025 07/01/2025
8-K 34 04/23/2025 04/23/2025 |    |  
8-K 34 04/23/2025 04/23/2025 |    |  
8-K 34 04/02/2025 03/30/2025 |    |  
Form Type Act Filing Date Report Date Action
DEF 14A 34 04/03/2025 05/15/2025
DEF 14A 34 03/27/2024 05/08/2024
DEF 14A 34 04/06/2023 07/01/2025
DEF 14A 34 03/18/2022 04/27/2022
DEF 14A 34 04/12/2021 05/26/2021
DEF 14A 34 04/17/2020 12/31/2019
DEF 14A 34 04/12/2019 05/22/2019
DEF 14A 34 04/13/2018 05/23/2018
DEF 14A 34 04/13/2017 05/24/2017
DEF 14A 34 03/16/2016 04/27/2016