Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000357173-26-000045
Filing Date
2026-08-06
Accepted
2026-08-06 12:01:17
Documents
92
Period of Report
2026-06-30

Document Format Files

Seq Description Document Type Size
1 10-Q osbc-20260630x10q.htm   iXBRL 10-Q 9175550
2 EX-31.1 osbc-20260630xex31d1.htm EX-31.1 17008
3 EX-31.2 osbc-20260630xex31d2.htm EX-31.2 17471
4 EX-32.1 osbc-20260630xex32d1.htm EX-32.1 10081
5 EX-32.2 osbc-20260630xex32d2.htm EX-32.2 9008
6 GRAPHIC osbc-20260630x10q001.jpg GRAPHIC 15958
  Complete submission text file 0000357173-26-000045.txt   35873345

Data Files

Seq Description Document Type Size
7 EX-101.SCH osbc-20260630.xsd EX-101.SCH 93477
8 EX-101.CAL osbc-20260630_cal.xml EX-101.CAL 114104
9 EX-101.DEF osbc-20260630_def.xml EX-101.DEF 473601
10 EX-101.LAB osbc-20260630_lab.xml EX-101.LAB 857822
11 EX-101.PRE osbc-20260630_pre.xml EX-101.PRE 659367
96 EXTRACTED XBRL INSTANCE DOCUMENT osbc-20260630x10q_htm.xml XML 11344091
Mailing Address 37 SOUTH RIVER STREET AURORA IL 60507
Business Address 37 S RIVER ST AURORA IL 60507 6308920202
OLD SECOND BANCORP INC (Filer) CIK: 0000357173 (see all company filings)

EIN.: 363143493 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-10537 | Film No.: 261247718
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)