Old Second Bancorp Inc (OSBC) SEC filings

OSBCNasdaqState Commercial BanksFiscal year ends December 31

Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 4, 2026Score 15/3012% above fair value

$25.11+0.01 (+0.04%)

Close on Nov 12, 2026Market cap $1.28BP/E 11.8Yield 1.00%

SEC filings

40 of Old Second Bancorp's most recent filings on SEC EDGAR

Document	Form	Period	Filed	Source
Quarterly report	10-Q	Sep 30, 2026	Nov 4, 2026	SEC EDGAR
Current report	8-K	Oct 21, 2026	Oct 21, 2026	SEC EDGAR
Current report	8-K	Oct 20, 2026	Oct 20, 2026	SEC EDGAR
Current report	8-K	Oct 14, 2026	Oct 19, 2026	SEC EDGAR
Current report	8-K	Oct 1, 2026	Oct 1, 2026	SEC EDGAR
Quarterly report	10-Q	Jun 30, 2026	Aug 6, 2026	SEC EDGAR
Current report	8-K	Jul 22, 2026	Jul 22, 2026	SEC EDGAR
Current report	8-K	Jul 21, 2026	Jul 21, 2026	SEC EDGAR
Current report	8-K	Jul 7, 2026	Jul 8, 2026	SEC EDGAR
Current report	8-K	Jul 1, 2026	Jul 1, 2026	SEC EDGAR
Current report	8-K	Jun 25, 2026	Jun 25, 2026	SEC EDGAR
Current report	8-K	Jun 5, 2026	Jun 9, 2026	SEC EDGAR
Current report	8-K	May 19, 2026	May 20, 2026	SEC EDGAR
Current report	8-K	May 19, 2026	May 19, 2026	SEC EDGAR
Quarterly report	10-Q	Mar 31, 2026	May 7, 2026	SEC EDGAR
Current report	8-K	Apr 22, 2026	Apr 22, 2026	SEC EDGAR
Current report	8-K	Apr 21, 2026	Apr 21, 2026	SEC EDGAR
Proxy statement	DEF 14A	May 19, 2026	Apr 6, 2026	SEC EDGAR
Current report	8-K	Apr 1, 2026	Apr 1, 2026	SEC EDGAR
Current report	8-K	Mar 4, 2026	Mar 4, 2026	SEC EDGAR
Annual report	10-K	Dec 31, 2025	Feb 26, 2026	SEC EDGAR
Current report	8-K	Jan 29, 2026	Jan 29, 2026	SEC EDGAR
Current report	8-K	Jan 21, 2026	Jan 21, 2026	SEC EDGAR
Current report	8-K	Jan 20, 2026	Jan 20, 2026	SEC EDGAR
Current report	8-K	Jan 2, 2026	Jan 2, 2026	SEC EDGAR
Quarterly report	10-Q	Sep 30, 2025	Nov 6, 2025	SEC EDGAR
Current report	8-K	Oct 22, 2025	Oct 22, 2025	SEC EDGAR
Current report	8-K	Oct 21, 2025	Oct 21, 2025	SEC EDGAR
Current report	8-K	Oct 1, 2025	Oct 1, 2025	SEC EDGAR
Current report	8-K	Sep 14, 2025	Sep 15, 2025	SEC EDGAR
Quarterly report	10-Q	Jun 30, 2025	Aug 7, 2025	SEC EDGAR
Current report	8-K	Jul 23, 2025	Jul 23, 2025	SEC EDGAR
Current report	8-K	Jul 15, 2025	Jul 15, 2025	SEC EDGAR
Current report	8-K	Jul 2, 2025	Jul 2, 2025	SEC EDGAR
Current report	8-K	Jul 1, 2025	Jul 1, 2025	SEC EDGAR
Current report	8-K	Jun 18, 2025	Jun 18, 2025	SEC EDGAR
Current report	8-K	May 23, 2025	May 28, 2025	SEC EDGAR
Current report	8-K	May 22, 2025	May 22, 2025	SEC EDGAR
Current report	8-K	May 20, 2025	May 20, 2025	SEC EDGAR
Current report	8-K	May 20, 2025	May 20, 2025	SEC EDGAR

Where these numbers come from

Parsed from the XBRL in Old Second Bancorp's annual and quarterly filings with the SEC
Per-share figures adjusted for the 2-for-1 split on Jul 29, 2004
Fourth quarters derived from the annual report minus nine months
Every figure in the statements links to its source filing

Against peers

Trailing twelve months. Peers are matched on business description, industry and size. Ticks are peers, the dot is OSBC.

Compare: OSBC vs FMBH · OSBC vs CTBI · OSBC vs QCRH · OSBC vs MBWM · OSBC vs FBK

Revenue growth20.6% · median 13.6%

Net margin29.1% · median 35.2%

Company	Revenue	Growth
FBK	$700.18M	+36.8%
FMBH	$400.52M	+15.7%
QCRH	$393.93M	+11.2%
OSBC	$382.69M	+20.6%
CTBI	$307.11M	+12.3%
MBWM	$271.62M	+13.6%

Company

Next earnings (est.): Jan 20, 2027, after close
Exchange: Nasdaq
Industry: State Commercial Banks
Fiscal year ends: December 31
Employees: 1,062
Held by institutions: 76.3%
Auditor: Plante & Moran PLLC
SEC CIK: 357173

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