# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000860413-22-000065
Filing Date
2022-02-25
Accepted
2022-02-25 16:51:49
Documents
135
Period of Report
2021-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | fibk-20211231.htm iXBRL | 10-K | 6535340
2 | EX-4.1 | fibk-20211231xex41_descxse.htm | EX-4.1 | 13746
3 | EX-10.11 | fibk-20211231xex1011_direc.htm | EX-10.11 | 10449
4 | EX-10.13 | fibk-20211231xex1013_mmutc.htm | EX-10.13 | 108002
5 | EX-10.14 | fibk-20211231xex1014_kjens.htm | EX-10.14 | 111945
6 | EX-10.15 | fibk-20211231xex1015_jhubb.htm | EX-10.15 | 109196
7 | EX-10.16 | fibk-20211231xex1016_pgagl.htm | EX-10.16 | 111102
8 | EX-10.17 | fibk-20211231xex1017_serko.htm | EX-10.17 | 110212
9 | EX-10.18 | fibk-20211231xex1018_kknie.htm | EX-10.18 | 110193
10 | EX-10.19 | fibk-20211231xex1019_rleex.htm | EX-10.19 | 116614
11 | EX-21.1 | fibk-20211231xex211_subsid.htm | EX-21.1 | 9400
12 | EX-23.1 | fibk-20211231xex231_consen.htm | EX-23.1 | 3274
13 | EX-31.1 | fibk-20211231xex311_certxc.htm | EX-31.1 | 10094
14 | EX-31.2 | fibk-20211231xex312_certxc.htm | EX-31.2 | 10058
15 | EX-32 | fibk-20211231xex32_section.htm | EX-32 | 6285
21 | GRAPHIC | fibk-20211231_g1.jpg | GRAPHIC | 138096
| Complete submission text file | 0000860413-22-000065.txt |  | 27774793

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
16 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | fibk-20211231.xsd | EX-101.SCH | 112185
17 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | fibk-20211231_cal.xml | EX-101.CAL | 242890
18 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | fibk-20211231_def.xml | EX-101.DEF | 868717
19 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | fibk-20211231_lab.xml | EX-101.LAB | 1619890
20 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | fibk-20211231_pre.xml | EX-101.PRE | 1175784
129 | EXTRACTED XBRL INSTANCE DOCUMENT | fibk-20211231_htm.xml | XML | 5869430

Mailing Address P O BOX 30918 401 NO 31ST STREET BILLINGS MT 59116-0918
Business Address P O BOX 30918 401 NO 31ST STREET BILLINGS MT 59116-0918 4062555300
FIRST INTERSTATE BANCSYSTEM INC (Filer) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: MT | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-34653 | Film No.: 22681300
SIC: 6022 State Commercial Banks