First Interstate Bancsystem FIBK SEC Filings

NASDAQ FIBK
$35.69 +0.13 (+0.37%)
As of: Oct 21, 2026 · 3:59 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing First Interstate Bancsystem Inc (FIBK) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
14Insider Transaction0001493152-26-045898Oct 6, 2026 8:43 PM
24Insider Transaction0002090710-26-000006Sep 22, 2026 10:21 PM
34Insider Transaction0001493152-26-042992Sep 16, 2026 11:04 PM
48-KCurrent Report0000860413-26-000092Sep 16, 2026 6:06 PM
54Insider Transaction0002154828-26-000005Sep 16, 2026 5:16 PM
63Insider Transaction0002154828-26-000003Sep 15, 2026 12:12 AM
74Insider Transaction0001493152-26-042633Sep 14, 2026 11:21 PM
84Insider Transaction0001493152-26-042536Sep 14, 2026 5:31 PM
9144Insider Transaction0001958244-26-000591Sep 11, 2026 10:53 PM
108-KCurrent Report0000860413-26-000088Aug 21, 2026 1:20 PM
11SCHEDULE 13GBeneficial Ownership Report0000093751-26-000463Aug 7, 2026 1:34 PM
1210-QQuarterly & Annual Report0000860413-26-000084Aug 3, 2026 8:01 PM
134Insider Transaction0001493152-26-035055Jul 28, 2026 10:34 PM
144Insider Transaction0002146309-26-000004Jul 24, 2026 10:31 PM
154Insider Transaction0001196952-26-000004Jul 24, 2026 10:30 PM
168-KCurrent Report0000860413-26-000081Jul 23, 2026 8:14 PM
173Insider Transaction0002146309-26-000002Jul 21, 2026 6:50 PM
183Insider Transaction0001196952-26-000002Jul 21, 2026 6:50 PM
194Insider Transaction0001493152-26-033609Jul 16, 2026 11:01 PM
20144Insider Transaction0001958244-26-000458Jul 16, 2026 8:42 PM
218-KCurrent Report0000860413-26-000078Jul 16, 2026 8:06 PM
228-KCurrent Report0000860413-26-000075Jul 9, 2026 8:02 PM
234Insider Transaction0001493152-26-029403Jun 18, 2026 9:51 PM
24144Insider Transaction0001950047-26-006304Jun 18, 2026 8:10 PM
254Insider Transaction0001493152-26-029300Jun 18, 2026 7:46 PM
264Insider Transaction0001493152-26-029217Jun 18, 2026 2:23 PM
27144Insider Transaction0001958244-26-000390Jun 17, 2026 9:21 PM
284Insider Transaction0001493152-26-027328Jun 4, 2026 10:41 PM
294Insider Transaction0001199246-26-000002Jun 3, 2026 5:50 PM
304Insider Transaction0002090710-26-000004Jun 3, 2026 5:50 PM
314Insider Transaction0002003084-26-000006Jun 3, 2026 5:49 PM
324Insider Transaction0001812520-26-000003Jun 3, 2026 5:49 PM
334Insider Transaction0001572624-26-000002Jun 3, 2026 5:49 PM
344Insider Transaction0002129338-26-000007Jun 3, 2026 5:49 PM
354Insider Transaction0002071416-26-000006Jun 3, 2026 5:49 PM
364Insider Transaction0002129553-26-000006Jun 3, 2026 5:49 PM
374Insider Transaction0001284209-26-000002Jun 3, 2026 5:49 PM
384Insider Transaction0001594614-26-000002Jun 3, 2026 5:49 PM
394Insider Transaction0001548048-26-000002Jun 3, 2026 5:49 PM
404Insider Transaction0001838577-26-000007Jun 3, 2026 5:49 PM
414Insider Transaction0001697127-26-000007Jun 3, 2026 5:49 PM
424Insider Transaction0000860413-26-000069Jun 3, 2026 5:46 PM
434Insider Transaction0000860413-26-000055Jun 3, 2026 5:45 PM
444Insider Transaction0000860413-26-000052Jun 3, 2026 5:45 PM
458-KCurrent Report0000860413-26-000048May 29, 2026 8:26 PM
46S-3ASROthers0001628280-26-038071May 26, 2026 4:06 PM-
47SCHEDULE 13GBeneficial Ownership Report0000902219-26-000149May 15, 2026 11:24 AM
488-KCurrent Report0000860413-26-000041May 13, 2026 5:12 PM
4910-QQuarterly & Annual Report0000860413-26-000038May 7, 2026 8:10 PM
504Insider Transaction0001493152-26-020876May 1, 2026 6:58 PM
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