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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001140361-23-017024
Filing Date
2023-04-06
Accepted
2023-04-06 16:12:10
Documents
3

Document Format Files

Seq Description Document Type Size
1 FORM DEFA14A ny20006886x2_defa14a.htm DEFA14A 17704
2 ny20006886x2_nc1.jpg GRAPHIC 365451
3 ny20006886x2_nc2.jpg GRAPHIC 576490
  Complete submission text file 0001140361-23-017024.txt   1315938
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.: 23806293
SIC: 6022 State Commercial Banks