Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001950047-25-008618
Filing Date
2025-11-10
Accepted
2025-11-10 16:20:32
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 3255
  Complete submission text file 0001950047-25-008618.txt   4779
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.: 251466519
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