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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001140361-21-012372
Filing Date
2021-04-12
Accepted
2021-04-12 09:05:59
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A nc10022254x2_defa14a.htm DEFA14A 16284
2 nc10022254x2_nc1.jpg GRAPHIC 1914481
3 nc10022254x2_nc2.jpg GRAPHIC 1674214
  Complete submission text file 0001140361-21-012372.txt   4659557
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.: 21819541
SIC: 6022 State Commercial Banks