Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000860413-25-000063
Filing Date
2025-05-16
Accepted
2025-05-16 16:32:09
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A a2024defa14aproxysupplement.htm DEFA14A 18157
2 FIBK LOGO image.jpg GRAPHIC 8369
3 GRAPHIC image1.jpg GRAPHIC 36306
  Complete submission text file 0000860413-25-000063.txt   81048
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: DEFA14A | Act: 34 | File No.: 001-34653 | Film No.: 25959824
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)