Old Second Bancorp OSBC SEC Filings

NASDAQ OSBC
$25.10 +0.26 (+1.05%)
At close: Oct 20, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Old Second Bancorp Inc (OSBC) 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 Transaction0001314109-26-000016Oct 1, 2026 10:27 PM
24Insider Transaction0001598917-26-000012Oct 1, 2026 10:24 PM
34Insider Transaction0001840027-26-000014Oct 1, 2026 10:21 PM
44Insider Transaction0001673321-26-000014Oct 1, 2026 10:17 PM
54Insider Transaction0001184766-26-000024Oct 1, 2026 10:12 PM
68-KCurrent Report0000357173-26-000050Oct 1, 2026 11:00 AM
74Insider Transaction0001184766-26-000022Sep 23, 2026 10:34 PM
8144Insider Transaction0001949846-26-000595Sep 23, 2026 4:23 PM
94Insider Transaction0001184766-26-000020Sep 11, 2026 3:50 PM
104Insider Transaction0001184764-26-000008Sep 8, 2026 9:17 PM
114Insider Transaction0001184764-26-000006Sep 8, 2026 9:09 PM
12144Insider Transaction0001969223-26-001003Sep 8, 2026 7:21 PM
134Insider Transaction0001184764-26-000004Sep 3, 2026 9:40 PM
144Insider Transaction0002074132-26-000008Sep 3, 2026 9:33 PM
15144Insider Transaction0001949846-26-000561Sep 2, 2026 8:00 PM
16S-3ASROthers0000357173-26-000048Aug 18, 2026 3:45 PM
174Insider Transaction0001314109-26-000014Aug 13, 2026 2:47 PM
184Insider Transaction0001314109-26-000012Aug 12, 2026 8:52 PM
194Insider Transaction0001829064-26-000008Aug 11, 2026 4:47 PM
20144Insider Transaction0001949846-26-000491Aug 11, 2026 2:51 PM
2110-QQuarterly & Annual Report0000357173-26-000045Aug 6, 2026 4:01 PM
228-KCurrent Report0000357173-26-000042Jul 22, 2026 8:05 PM
238-KCurrent Report0000357173-26-000039Jul 21, 2026 3:00 PM
248-KCurrent Report0000357173-26-000037Jul 8, 2026 3:00 PM
254Insider Transaction0001598917-26-000010Jul 2, 2026 2:29 PM
264Insider Transaction0001184766-26-000018Jul 2, 2026 2:22 PM
274Insider Transaction0001673321-26-000012Jul 2, 2026 2:15 PM
284Insider Transaction0001314109-26-000010Jul 2, 2026 2:06 PM
294Insider Transaction0001840027-26-000012Jul 2, 2026 1:55 PM
308-KCurrent Report0000357173-26-000035Jul 1, 2026 3:00 PM
3111-KOthers0000357173-26-000033Jun 29, 2026 8:55 PM
328-KCurrent Report0000357173-26-000030Jun 25, 2026 3:00 PM
338-KCurrent Report0000357173-26-000028Jun 9, 2026 11:00 AM
344Insider Transaction0001184766-26-000014May 21, 2026 9:35 PM
358-KCurrent Report0000357173-26-000026May 20, 2026 2:30 PM
368-KCurrent Report0000357173-26-000024May 19, 2026 1:50 PM
374Insider Transaction0001829064-26-000006May 12, 2026 1:29 PM
384Insider Transaction0001673321-26-000010May 11, 2026 7:55 PM
394Insider Transaction0001673321-26-000010May 11, 2026 7:55 PM
404Insider Transaction0001673321-26-000010May 11, 2026 7:55 PM
414Insider Transaction0001184766-26-000012May 11, 2026 7:39 PM
424Insider Transaction0001184766-26-000012May 11, 2026 7:39 PM
434Insider Transaction0001184766-26-000012May 11, 2026 7:39 PM
4410-QQuarterly & Annual Report0000357173-26-000022May 7, 2026 7:01 PM
458-KCurrent Report0000357173-26-000020Apr 22, 2026 4:05 PM
468-KCurrent Report0000357173-26-000018Apr 21, 2026 2:30 PM
47ARSOthers0001104659-26-039838Apr 6, 2026 3:37 PM
48DEFA14AOthers0001104659-26-039830Apr 6, 2026 3:17 PM
49DEF 14AOthers0001104659-26-039829Apr 6, 2026 3:15 PM
504Insider Transaction0001598917-26-000008Apr 2, 2026 1:13 PM
...

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