Mailing Address 1301 A STREET TACOMA WA 98402
Business Address 1301 A STREET TACOMA WA 98402 2533051900
COLUMBIA BANKING SYSTEM, INC. CIK#: 0000887343 (see all company filings)

SIC: 6022 - STATE COMMERCIAL BANKS
State location: WA | State of Inc.: WA | Fiscal Year End: 1231
formerly: COLUMBIA BANKING SYSTEM INC (filings through 2019-05-03)
(CF Office: 02 Finance)
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Items 1 - 40  0000887343 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
SCHEDULE 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000093751-25-000252 (34 Act)  Size: 8 KB
2025-05-13 005-50084
25937839
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000887343-25-000166 (34 Act)  Size: 20 MB
2025-05-06 000-20288
25917798
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-112969 Size: 18 MB
2025-05-06
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000887343-25-000163 (34 Act)  Size: 7 MB
2025-05-05 000-20288
25914136
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-094682 Size: 568 KB
2025-04-25
8-K  Documents   Interactive Data Current report, items 1.01 and 9.01
Acc-no: 0001193125-25-094676 (34 Act)  Size: 821 KB
2025-04-25 000-20288
25869779
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-094211 Size: 139 KB
2025-04-25
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091907 Size: 19 KB
2025-04-24
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091904 Size: 27 KB
2025-04-24
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091900 Size: 22 KB
2025-04-24
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091895 Size: 54 KB
2025-04-24
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091891 Size: 24 KB
2025-04-24
425  Documents Prospectuses and communications, business combinations
Acc-no: 0001193125-25-091472 Size: 9 MB
2025-04-23
8-K  Documents   Interactive Data Current report, items 7.01, 8.01, and 9.01
Acc-no: 0001193125-25-091469 (34 Act)  Size: 10 MB
2025-04-23 000-20288
25862342
8-K  Documents   Interactive Data Current report, items 2.02, 7.01, and 9.01
Acc-no: 0000887343-25-000159 (34 Act)  Size: 8 MB
2025-04-23 000-20288
25862045
ARS  Documents Annual Report to Security Holders
Acc-no: 0000887343-25-000156 (34 Act)  Size: 1 MB
2025-04-03 000-20288
25810174
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0000887343-25-000154 (34 Act)  Size: 1 MB
2025-04-03 000-20288
25810135
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0000887343-25-000152 (34 Act)  Size: 51 MB
2025-04-03 000-20288
25810091
8-K  Documents   Interactive Data Current report, items 5.02, 7.01, and 9.01
Acc-no: 0000887343-25-000143 (34 Act)  Size: 180 KB
2025-04-02 000-20288
25805267
11-K  Documents Annual report of employee stock purchase, savings and similar plans
Acc-no: 0000887343-25-000138 (34 Act)  Size: 84 KB
2025-03-31 000-20288
25793945
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000887343-25-000133 (34 Act)  Size: 169 KB
2025-03-31 000-20288
25792171
8-K  Documents   Interactive Data Current report, item 7.01
Acc-no: 0000887343-25-000130 (34 Act)  Size: 143 KB
2025-03-27 000-20288
25779984
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000887343-25-000054 (34 Act)  Size: 31 MB
2025-02-25 000-20288
25663883
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000887343-25-000022 (34 Act)  Size: 165 KB
2025-02-14 000-20288
25626674
SCHEDULE 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000093751-25-000030 (34 Act)  Size: 8 KB
2025-02-04 005-50084
25585724
8-K  Documents   Interactive Data Current report, items 2.02, 7.01, and 9.01
Acc-no: 0000887343-25-000015 (34 Act)  Size: 9 MB
2025-01-23 000-20288
25550558
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000887343-24-000275 (34 Act)  Size: 169 KB
2024-12-31 000-20288
241592161
S-3ASR  Documents   Interactive Data Automatic shelf registration statement of securities of well-known seasoned issuers
Acc-no: 0000887343-24-000272 (33 Act)  Size: 696 KB
2024-12-20 333-283985
241568414
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000887343-24-000265 (34 Act)  Size: 165 KB
2024-11-15 000-20288
241467710
SC 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001897612-24-001892 (34 Act)  Size: 6 KB
2024-11-14 005-50084
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000887343-24-000262 (34 Act)  Size: 29 MB
2024-11-05 000-20288
241428074
8-K  Documents   Interactive Data Current report, items 2.02, 7.01, and 9.01
Acc-no: 0000887343-24-000256 (34 Act)  Size: 9 MB
2024-10-24 000-20288
241391596
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000887343-24-000252 (34 Act)  Size: 169 KB
2024-09-30 000-20288
241338852
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000887343-24-000247 (34 Act)  Size: 165 KB
2024-08-12 000-20288
241196090
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000887343-24-000245 (34 Act)  Size: 21 MB
2024-08-06 000-20288
241179965
8-K  Documents   Interactive Data Current report, items 2.02, 7.01, and 9.01
Acc-no: 0000887343-24-000242 (34 Act)  Size: 9 MB
2024-07-25 000-20288
241142517
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000887343-24-000235 (34 Act)  Size: 169 KB
2024-06-28 000-20288
241084308
11-K  Documents Annual report of employee stock purchase, savings and similar plans
Acc-no: 0000887343-24-000232 (34 Act)  Size: 263 KB
2024-06-25 000-20288
241065626
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000887343-24-000201 (34 Act)  Size: 166 KB
2024-05-13 000-20288
24937994
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0000887343-24-000197 (33 Act)  Size: 122 KB
2024-05-09 333-279238
24928568