# Filing Detail

Form S-4/A - Registration of securities, business combinations: [Amend]
SEC Accession No. 0001193125-21-346812
Filing Date
2021-12-02
Accepted
2021-12-02 17:12:52
Documents
17

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | S-4/A | d261205ds4a.htm | S-4/A | 2222175
2 | EX-5.1 | d261205dex51.htm | EX-5.1 | 4399
3 | EX-8.1 | d261205dex81.htm | EX-8.1 | 3922
4 | EX-8.2 | d261205dex82.htm | EX-8.2 | 3785
5 | EX-99.1 | d261205dex991.htm | EX-99.1 | 6356
6 | EX-99.2 | d261205dex992.htm | EX-99.2 | 5319
7 | EX-99.3 | d261205dex993.htm | EX-99.3 | 2385
8 | EX-99.4 | d261205dex994.htm | EX-99.4 | 2748
9 | GRAPHIC | g261205g00m72.jpg | GRAPHIC | 28404
10 | GRAPHIC | g261205g10y10.jpg | GRAPHIC | 27851
11 | GRAPHIC | g261205g12a14.jpg | GRAPHIC | 171698
12 | GRAPHIC | g261205g12a15.jpg | GRAPHIC | 169925
13 | GRAPHIC | g261205g15m12.jpg | GRAPHIC | 208501
14 | GRAPHIC | g261205g15m13.jpg | GRAPHIC | 196614
15 | GRAPHIC | g261205g25l59.jpg | GRAPHIC | 26503
16 | GRAPHIC | g261205g78w29.jpg | GRAPHIC | 25168
17 | GRAPHIC | g261205g95l58.jpg | GRAPHIC | 29081
| Complete submission text file | 0001193125-21-346812.txt |  | 3458443

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)

EIN.: 911422237 | State of Incorp.: WA | Fiscal Year End: 1231
Type: S-4/A | Act: 33 | File No.: 333-261281 | Film No.: 211467713
SIC: 6022 State Commercial Banks