Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001959173-25-005181
Filing Date
2025-08-14
Accepted
2025-08-14 17:13:13
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 5539
  Complete submission text file 0001959173-25-005181.txt   7063
Mailing Address 401 NO 31ST STREET BILLINGS MT 59101
Business Address 401 NO 31ST STREET BILLINGS MT 59101 4062555311
FIRST INTERSTATE BANCSYSTEM INC (Subject) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 001-34653 | Film No.: 251220947
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)

Mailing Address C/O FIRST INTERSTATE BANCSYSTEM INC P O BOX 30918 BILLINGS MT 59116
Business Address
HEYNEMAN JOHN M JR (Reporting) CIK: 0001198518 (see all company filings)

Type: 144