Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001829064-26-000006
Filing Date
2026-05-12
Accepted
2026-05-12 09:29:23
Documents
1
Period of Report
2026-05-11

Document Format Files

Seq Description Document Type Size
1 form4-05122026_010520.html 4  
1 form4-05122026_010520.xml 4 3950
  Complete submission text file 0001829064-26-000006.txt   5291
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 37 SOUTH RIVER STREET AURORA IL 60506
Business Address
Lyons Billy J Jr. (Reporting) CIK: 0001829064 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-10537 | Film No.: 26966195