Form 8-K/A - Current report: [Amend]
SEC Accession No. 0000860413-25-000135
Filing Date
2025-08-29
Accepted
2025-08-29 16:20:11
Documents
12
Period of Report
2025-08-13
Items
Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Document Format Files

Seq Description Document Type Size
1 8-K/A fibk-20250813.htm   iXBRL 8-K/A 26530
  Complete submission text file 0000860413-25-000135.txt   141292

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT fibk-20250813.xsd EX-101.SCH 1773
3 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT fibk-20250813_lab.xml EX-101.LAB 21885
4 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT fibk-20250813_pre.xml EX-101.PRE 12502
15 EXTRACTED XBRL INSTANCE DOCUMENT fibk-20250813_htm.xml XML 2724
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/A | Act: 34 | File No.: 001-34653 | Film No.: 251281181
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)