Company facts
- Industry
- State Commercial Banks
- Headquarters
- Aurora, Illinois
- Most recent report
- 10-Q, filed Nov 4, 2026
- Incorporated
- Delaware
- Filings on record
- 1,001+ filings
- On EDGAR
- CIK 357173
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 45
News 8 of 208
Prospectuses and Registrations 8 of 22
- S-3ASR Automatic shelf registration Aug 18, 2026
- S-8 Registration statement for an employee plan Jun 2, 2025
- 424B3 Prospectus supplement for an offering May 15, 2025
- 424B3 Prospectus supplement for an offering May 8, 2025
- S-4/A Registration statement for a merger or exchange, amended May 6, 2025
- S-4 Registration statement for a merger or exchange Apr 23, 2025
- S-3/A Shelf registration statement, amended Aug 24, 2023
- S-3 Shelf registration statement Aug 18, 2023
Proxies 8 of 14
- DEFA14A Extra proxy material Apr 6, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 6, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 18, 2025
- PRE 14A Preliminary proxy statement Apr 1, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 19, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 14, 2023
- DEF 14A Proxy statement for a shareholder vote Apr 14, 2022
- DEF 14A Proxy statement for a shareholder vote Apr 16, 2021
Ownership 8 of 671
- SCHEDULE 13G Large holder reported a passive stake Oct 30, 2026
- 4 Insider reported a trade Oct 21, 2026
- 4/A Insider reported a trade, amended Oct 21, 2026
- 4/A Insider reported a trade, amended Oct 21, 2026
- 4/A Insider reported a trade, amended Oct 20, 2026
- 4/A Insider reported a trade, amended Oct 20, 2026
- 4/A Insider reported a trade, amended Oct 20, 2026
- 4/A Insider reported a trade, amended Oct 20, 2026
Other 8 of 41
- 11-K Employee stock plan report Jun 29, 2026
- ARS Annual report sent to shareholders Apr 6, 2026
- 11-K Employee stock plan report Jun 30, 2025
- EFFECT Notice that a registration became effective May 8, 2025
- CORRESP Reply to SEC staff May 6, 2025
- UPLOAD Comment letter from SEC staff May 1, 2025
- ARS Annual report sent to shareholders Apr 25, 2025
- 425 Feb 26, 2025
Everything here comes from Old Second Bancorp Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.