Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000860413-25-000060
Filing Date
2025-05-07
Accepted
2025-05-07 14:47:01
Documents
89
Period of Report
2025-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q fibk-20250331.htm   iXBRL 10-Q 3251089
2 EX-31.1 fibk-20250331xex311.htm EX-31.1 10215
3 EX-31.2 fibk-20250331xex312.htm EX-31.2 10362
4 EX-32 fibk-20250331xex32.htm EX-32 4069
  Complete submission text file 0000860413-25-000060.txt   17528187

Data Files

Seq Description Document Type Size
5 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT fibk-20250331.xsd EX-101.SCH 68400
6 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT fibk-20250331_cal.xml EX-101.CAL 126026
7 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT fibk-20250331_def.xml EX-101.DEF 610759
8 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT fibk-20250331_lab.xml EX-101.LAB 840851
9 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT fibk-20250331_pre.xml EX-101.PRE 802317
91 EXTRACTED XBRL INSTANCE DOCUMENT fibk-20250331_htm.xml XML 4081551
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.: 25920808
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)