Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000860413-25-000022
Filing Date
2025-02-28
Accepted
2025-02-28 17:31:22
Documents
144
Period of Report
2024-12-31

Document Format Files

Seq Description Document Type Size
1 10-K fibk-20241231.htm   iXBRL 10-K 5277350
2 EX-10.2 fibk-20241231xex102_deferr.htm EX-10.2 519306
3 EX-10.12 fibk-20250226xex1012_prsur.htm EX-10.12 94673
4 EX-10.14 fibk-20241231xex1014_direc.htm EX-10.14 12021
5 EX-19.1 fibk-20242131xex19_insider.htm EX-19.1 142812
6 EX-21.1 fibk-20241231xex211_subsid.htm EX-21.1 15210
7 EX-23.1 fibk-20241231xex231_consen.htm EX-23.1 4929
8 EX-23.2 fibk-20241231xex232_consen.htm EX-23.2 3215
9 EX-31.1 fibk-20241231xex311_certxc.htm EX-31.1 9998
10 EX-31.2 fibk-20241231xex312_certxc.htm EX-31.2 9960
11 EX-32 fibk-20241231xex32_section.htm EX-32 6185
17 GRAPHIC fibk-20241231_g1.jpg GRAPHIC 139772
18 FIBK LOGO image_0.jpg GRAPHIC 54496
19 FIBK LOGO image_0b.jpg GRAPHIC 54496
  Complete submission text file 0000860413-25-000022.txt   27770097

Data Files

Seq Description Document Type Size
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT fibk-20241231.xsd EX-101.SCH 122914
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT fibk-20241231_cal.xml EX-101.CAL 189291
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT fibk-20241231_def.xml EX-101.DEF 1008447
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT fibk-20241231_lab.xml EX-101.LAB 1549030
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT fibk-20241231_pre.xml EX-101.PRE 1313441
146 EXTRACTED XBRL INSTANCE DOCUMENT fibk-20241231_htm.xml XML 5454800
Mailing Address 401 NO 31ST STREET BILLINGS MT 59101
Business Address 401 NO 31ST STREET BILLINGS MT 59101 4062555311
FIRST INTERSTATE BANCSYSTEM INC (Filer) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-34653 | Film No.: 25692451
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)