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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000887343-24-000171
Filing Date
2024-04-08
Accepted
2024-04-08 16:37:58
Documents
1

Document Format Files

Seq Description Document Type Size
1 DEFA14A cbsidef14aproxysupplement2.htm DEFA14A 16735
  Complete submission text file 0000887343-24-000171.txt   17806
Mailing Address 1301 A STREET TACOMA WA 98402
Business Address 1301 A STREET TACOMA WA 98402 2533051900
COLUMBIA BANKING SYSTEM, INC. (Filer) CIK: 0000887343 (see all company filings)

IRS No.: 911422237 | State of Incorp.: WA | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 000-20288 | Film No.: 24830069
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)