# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000860413-21-000144
Filing Date
2021-04-14
Accepted
2021-04-14 12:36:38
Documents
2

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | defa14aproxysoliciting.htm | DEFA14A | 17504
2 | GRAPHIC | noticeinternetavailability.jpg | GRAPHIC | 2683227
| Complete submission text file | 0000860413-21-000144.txt |  | 3710277

Mailing Address P O BOX 30918 401 NO 31ST STREET BILLINGS MT 59116-0918
Business Address P O BOX 30918 401 NO 31ST STREET BILLINGS MT 59116-0918 4062555300
FIRST INTERSTATE BANCSYSTEM INC (Filer) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: MT | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-34653 | Film No.: 21825113
SIC: 6022 State Commercial Banks