Form 8-K - Current report:
SEC Accession No. 0000357173-26-000014
Filing Date
2026-03-04
Accepted
2026-03-04 11:30:07
Documents
13
Period of Report
2026-03-04
Items
Item 8.01: Other Events

Document Format Files

Seq Description Document Type Size
1 8-K osbc-20260304x8k.htm   iXBRL 8-K 35486
2 GRAPHIC osbc-20260304x8k001.jpg GRAPHIC 12513
  Complete submission text file 0000357173-26-000014.txt   168206

Data Files

Seq Description Document Type Size
3 EX-101.SCH osbc-20260304.xsd EX-101.SCH 2929
4 EX-101.LAB osbc-20260304_lab.xml EX-101.LAB 13545
5 EX-101.PRE osbc-20260304_pre.xml EX-101.PRE 9168
16 EXTRACTED XBRL INSTANCE DOCUMENT osbc-20260304x8k_htm.xml XML 4079
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.: 26719625
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)