Form 8-K - Current report:
SEC Accession No. 0001104659-25-057359
Filing Date
2025-06-06
Accepted
2025-06-06 16:27:30
Documents
19
Period of Report
2025-06-05
Items
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 FORM 8-K tm258437d7_8k.htm   iXBRL 8-K 35214
2 EXHIBIT 1.1 tm258437d7_ex1-1.htm EX-1.1 265557
3 EXHIBIT 5.1 tm258437d7_ex5-1.htm EX-5.1 13046
4 EXHIBIT 99.1 tm258437d7_ex99-1.htm EX-99.1 10883
8 GRAPHIC tm258437d7_ex99-1img001.jpg GRAPHIC 17581
9 GRAPHIC tm258437d7_ex5-1img001.jpg GRAPHIC 5511
10 GRAPHIC tm258437d7_ex5-1img002.jpg GRAPHIC 4539
11 GRAPHIC tm258437d7_ex1-1img001.jpg GRAPHIC 17423
  Complete submission text file 0001104659-25-057359.txt   627195

Data Files

Seq Description Document Type Size
5 XBRL TAXONOMY EXTENSION SCHEMA fibk-20250605.xsd EX-101.SCH 3002
6 XBRL TAXONOMY EXTENSION LABEL LINKBASE fibk-20250605_lab.xml EX-101.LAB 34239
7 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE fibk-20250605_pre.xml EX-101.PRE 22350
21 EXTRACTED XBRL INSTANCE DOCUMENT tm258437d7_8k_htm.xml XML 3572
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.: 251031112
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)