# Filing Detail

Form 8-K - Current report:
SEC Accession No. 0000860413-25-000057
Filing Date
2025-04-29
Accepted
2025-04-29 16:09:18
Documents
34
Period of Report
2025-04-29
Items
Item 2.02: Results of Operations and Financial Condition
Item 7.01: Regulation FD Disclosure
Item 8.01: Other Events
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 8-K | fibk-20250429.htm iXBRL | 8-K | 32902
2 | EX-99.1 | fibk-20250331x8kpr.htm | EX-99.1 | 781402
3 | EX-99.2 | mar2025ip.htm | EX-99.2 | 33333
7 | FIBK LOGO | fibslogo2linea04.jpg | GRAPHIC | 165531
8 | GRAPHIC | mar2025ip001.jpg | GRAPHIC | 138678
9 | GRAPHIC | mar2025ip002.jpg | GRAPHIC | 268606
10 | GRAPHIC | mar2025ip003.jpg | GRAPHIC | 100271
11 | GRAPHIC | mar2025ip004.jpg | GRAPHIC | 189171
12 | GRAPHIC | mar2025ip005.jpg | GRAPHIC | 81990
13 | GRAPHIC | mar2025ip006.jpg | GRAPHIC | 84263
14 | GRAPHIC | mar2025ip007.jpg | GRAPHIC | 90129
15 | GRAPHIC | mar2025ip008.jpg | GRAPHIC | 108452
16 | GRAPHIC | mar2025ip009.jpg | GRAPHIC | 85784
17 | GRAPHIC | mar2025ip010.jpg | GRAPHIC | 114913
18 | GRAPHIC | mar2025ip011.jpg | GRAPHIC | 102901
19 | GRAPHIC | mar2025ip012.jpg | GRAPHIC | 60359
20 | GRAPHIC | mar2025ip013.jpg | GRAPHIC | 74425
21 | GRAPHIC | mar2025ip014.jpg | GRAPHIC | 85738
22 | GRAPHIC | mar2025ip015.jpg | GRAPHIC | 96408
23 | GRAPHIC | mar2025ip016.jpg | GRAPHIC | 277592
24 | GRAPHIC | mar2025ip017.jpg | GRAPHIC | 112761
25 | GRAPHIC | mar2025ip018.jpg | GRAPHIC | 105765
| Complete submission text file | 0000860413-25-000057.txt |  | 4261240

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
4 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | fibk-20250429.xsd | EX-101.SCH | 1773
5 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | fibk-20250429_lab.xml | EX-101.LAB | 21885
6 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | fibk-20250429_pre.xml | EX-101.PRE | 12502
36 | EXTRACTED XBRL INSTANCE DOCUMENT | fibk-20250429_htm.xml | XML | 2723

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: 8-K | Act: 34 | File No.: 001-34653 | Film No.: 25887475
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)