# Filing Detail

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses:
SEC Accession No. 0001104659-25-056687
Filing Date
2025-06-05
Accepted
2025-06-05 08:49:13
Documents
32

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FWP | tm258437d4_fwp.htm | FWP | 58673
2 | GRAPHIC | tm258437d4_fwpimg001.jpg | GRAPHIC | 242003
3 | GRAPHIC | tm258437d4_fwpimg002.jpg | GRAPHIC | 334281
4 | GRAPHIC | tm258437d4_fwpimg003.jpg | GRAPHIC | 88864
5 | GRAPHIC | tm258437d4_fwpimg004.jpg | GRAPHIC | 150071
6 | GRAPHIC | tm258437d4_fwpimg005.jpg | GRAPHIC | 16001
7 | GRAPHIC | tm258437d4_fwpimg006.jpg | GRAPHIC | 136160
8 | GRAPHIC | tm258437d4_fwpimg007.jpg | GRAPHIC | 109601
9 | GRAPHIC | tm258437d4_fwpimg008.jpg | GRAPHIC | 170926
10 | GRAPHIC | tm258437d4_fwpimg009.jpg | GRAPHIC | 285999
11 | GRAPHIC | tm258437d4_fwpimg010.jpg | GRAPHIC | 123797
12 | GRAPHIC | tm258437d4_fwpimg011.jpg | GRAPHIC | 17253
13 | GRAPHIC | tm258437d4_fwpimg012.jpg | GRAPHIC | 90708
14 | GRAPHIC | tm258437d4_fwpimg013.jpg | GRAPHIC | 91805
15 | GRAPHIC | tm258437d4_fwpimg014.jpg | GRAPHIC | 103801
16 | GRAPHIC | tm258437d4_fwpimg015.jpg | GRAPHIC | 89192
17 | GRAPHIC | tm258437d4_fwpimg016.jpg | GRAPHIC | 21563
18 | GRAPHIC | tm258437d4_fwpimg017.jpg | GRAPHIC | 90907
19 | GRAPHIC | tm258437d4_fwpimg018.jpg | GRAPHIC | 151672
20 | GRAPHIC | tm258437d4_fwpimg019.jpg | GRAPHIC | 137134
21 | GRAPHIC | tm258437d4_fwpimg020.jpg | GRAPHIC | 78456
22 | GRAPHIC | tm258437d4_fwpimg021.jpg | GRAPHIC | 16023
23 | GRAPHIC | tm258437d4_fwpimg022.jpg | GRAPHIC | 114751
24 | GRAPHIC | tm258437d4_fwpimg023.jpg | GRAPHIC | 72639
25 | GRAPHIC | tm258437d4_fwpimg024.jpg | GRAPHIC | 119082
26 | GRAPHIC | tm258437d4_fwpimg025.jpg | GRAPHIC | 39748
27 | GRAPHIC | tm258437d4_fwpimg026.jpg | GRAPHIC | 11287
28 | GRAPHIC | tm258437d4_fwpimg027.jpg | GRAPHIC | 151975
29 | GRAPHIC | tm258437d4_fwpimg028.jpg | GRAPHIC | 183527
30 | GRAPHIC | tm258437d4_fwpimg029.jpg | GRAPHIC | 92033
31 | GRAPHIC | tm258437d4_fwpimg030.jpg | GRAPHIC | 144637
32 | GRAPHIC | tm258437d4_fwpimg031.jpg | GRAPHIC | 103647
| Complete submission text file | 0001104659-25-056687.txt |  | 4872443

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.: 251025107
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)