Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses:
SEC Accession No. 0001104659-25-056878
Filing Date
2025-06-05
Accepted
2025-06-05 16:44:21
Documents
2

Document Format Files

Seq Description Document Type Size
1 FWP tm258437d6_fwp.htm FWP 26262
2 GRAPHIC tm258437d6_fwpimg001.jpg GRAPHIC 6388
  Complete submission text file 0001104659-25-056878.txt   37013
Mailing Address 401 NO 31ST STREET BILLINGS MT 59101
Business Address 401 NO 31ST STREET BILLINGS MT 59101 4062555311
FIRST INTERSTATE BANCSYSTEM INC (Filed by) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: DE | Fiscal Year End: 1231
Type: FWP
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)

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: FWP | Act: 34 | File No.: 333-272215 | Film No.: 251027742
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)