Form 8-K - Current report:
SEC Accession No. 0000357173-26-000026
Filing Date
2026-05-20
Accepted
2026-05-20 10:30:10
Documents
12
Period of Report
2026-05-19
Items
Item 5.07: Submission of Matters to a Vote of Security Holders

Document Format Files

Seq Description Document Type Size
1 8-K osbc-20260519x8k.htm   iXBRL 8-K 57337
2 GRAPHIC osbc-20260519x8k001.jpg GRAPHIC 13226
  Complete submission text file 0000357173-26-000026.txt   192687

Data Files

Seq Description Document Type Size
3 EX-101.SCH osbc-20260519.xsd EX-101.SCH 2931
4 EX-101.LAB osbc-20260519_lab.xml EX-101.LAB 13547
5 EX-101.PRE osbc-20260519_pre.xml EX-101.PRE 9170
16 EXTRACTED XBRL INSTANCE DOCUMENT osbc-20260519x8k_htm.xml XML 4119
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: 8-K | Act: 34 | File No.: 000-10537 | Film No.: 261002253
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)