Financial reports
10-K
2023 FY
Annual report
29 Feb 24
10-Q
2023 Q3
Quarterly report
3 Nov 23
10-Q
2023 Q2
Quarterly report
4 Aug 23
10-Q
2023 Q1
Quarterly report
5 May 23
ARS
2022 FY
Annual report to shareholders
11 Apr 23
10-K
2022 FY
Annual report
24 Feb 23
10-Q
2022 Q3
Quarterly report
7 Nov 22
10-Q
2022 Q2
Quarterly report
5 Aug 22
10-Q
2022 Q1
Quarterly report
9 May 22
10-K
2021 FY
Annual report
25 Feb 22
Current reports
8-K
First Interstate BancSystem, Inc. Reports Fourth Quarter Earnings
30 Jan 24
8-K
Entry into a Material Definitive Agreement
14 Dec 23
8-K
Departure of Directors or Certain Officers
1 Dec 23
8-K
Changes in Registrant's Certifying Accountant
30 Nov 23
8-K
First Interstate BancSystem, Inc. Reports Third Quarter Earnings
25 Oct 23
8-K
Departure of Directors or Certain Officers
28 Aug 23
8-K
First Interstate BancSystem, Inc. Reports Second Quarter Earnings
26 Jul 23
8-K
Departure of Directors or Certain Officers
30 Jun 23
8-K
Results of Operations and Financial Condition
25 May 23
8-K
Material Modifications to Rights of Security Holders
25 May 23
Registration and prospectus
S-3ASR
Automatic shelf registration
25 May 23
S-8
Registration of securities for employees
25 May 23
8-A12B/A
Registration of securities on exchange (amended)
25 May 23
S-8 POS
Registration of securities for employees (post-effective amendment)
9 Jan 23
S-8 POS
Registration of securities for employees (post-effective amendment)
9 Jan 23
15-12G
Securities registration termination
11 Jul 22
8-A12B/A
Registration of securities on exchange (amended)
8 Jul 22
425
Business combination disclosure
11 Jan 22
425
Business combination disclosure
23 Dec 21
424B3
Prospectus supplement
16 Dec 21
Proxies
DEFA14A
Additional proxy soliciting materials
12 May 23
DEFA14A
Additional proxy soliciting materials
5 May 23
DEFA14A
Additional proxy soliciting materials
11 Apr 23
DEF 14A
Definitive proxy
11 Apr 23
PRE 14A
Preliminary proxy
10 Mar 23
DEFA14A
Additional proxy soliciting materials
14 Apr 22
DEF 14A
Definitive proxy
14 Apr 22
DEFA14A
Additional proxy soliciting materials
14 Apr 21
DEF 14A
Definitive proxy
14 Apr 21
DEFA14A
Additional proxy soliciting materials
15 Apr 20
Other
EFFECT
Notice of effectiveness
17 Dec 21
CORRESP
Correspondence with SEC
14 Dec 21
UPLOAD
Letter from SEC
9 Nov 21
EFFECT
Notice of effectiveness
24 Mar 20
EFFECT
Notice of effectiveness
8 May 19
EFFECT
Notice of effectiveness
8 May 19
EFFECT
Notice of effectiveness
10 Sep 18
EFFECT
Notice of effectiveness
3 Jul 18
CORRESP
Correspondence with SEC
2 Jul 18
UPLOAD
Letter from SEC
14 Jun 18