Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001424453-25-000004
Filing Date
2025-11-26
Accepted
2025-11-26 16:57:37
Documents
1
Period of Report
2025-11-26

Document Format Files

Seq Description Document Type Size
1 form4-11262025_091133.html 4  
1 form4-11262025_091133.xml 4 5711
  Complete submission text file 0001424453-25-000004.txt   7061
Mailing Address 37 SOUTH RIVER STREET AURORA IL 60507
Business Address 37 S RIVER ST AURORA IL 60507 6308920202
OLD SECOND BANCORP INC (Issuer) CIK: 0000357173 (see all company filings)

EIN.: 363143493 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)

Mailing Address 20201 S. LAGRANGE RD., STE 100 FRANKFORT IL 60423
Business Address
Ladowicz John (Reporting) CIK: 0001424453 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-10537 | Film No.: 251531140