Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000860413-25-000117
Filing Date
2025-08-06
Accepted
2025-08-06 16:16:35
Documents
92
Period of Report
2025-06-30

Document Format Files

Seq Description Document Type Size
1 10-Q fibk-20250630.htm   iXBRL 10-Q 3810281
2 EX-10.2 fibk-20250630xex102.htm EX-10.2 80833
3 EX-31.1 fibk-20250630xex311.htm EX-31.1 10058
4 EX-31.2 fibk-20250630xex312.htm EX-31.2 10226
5 EX-32 fibk-20250630xex32.htm EX-32 4030
  Complete submission text file 0000860413-25-000117.txt   19332822

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT fibk-20250630.xsd EX-101.SCH 73796
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT fibk-20250630_cal.xml EX-101.CAL 129319
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT fibk-20250630_def.xml EX-101.DEF 640242
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT fibk-20250630_lab.xml EX-101.LAB 890584
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT fibk-20250630_pre.xml EX-101.PRE 834830
94 EXTRACTED XBRL INSTANCE DOCUMENT fibk-20250630_htm.xml XML 4612294
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-Q | Act: 34 | File No.: 001-34653 | Film No.: 251189815
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)