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OLD SECOND BANCORP INC — 8-K/A Filings

7 8-K/A filings on record

This page lists all 8-K/A filings submitted to the SEC by OLD SECOND BANCORP INC (OSBC), sorted by most recent first. Each row links to the full filing on EdgarLookup. OLD SECOND BANCORP INC has filed 7 8-K/A documents with the SEC since 2015. To view all SEC filings by OLD SECOND BANCORP INC, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 10-Q/A 11-K 144 144/A 15-12G 25-NSE 3 4 4/A 424B1 424B2 424B3 424B4 424B5 425 5 8-A12G 8-A12G/A 8-K 8-K/A ARS CORRESP D DEF 14A DEFA14A EFFECT FWP NT 11-K PRE 14A S-1 S-1/A S-3 S-3/A S-4 S-4/A S-8 SC 13D SC 13G SC 13G/A SC TO-I SC TO-I/A SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
8-K/A 8-K/A 0000357173-25-000082 Sep 17, 2025 Jul 1, 2025
8-K/A 8-K/A 0000357173-25-000055 Jun 3, 2025 May 20, 2025
8-K/A 8-K/A 0000357173-24-000085 Dec 20, 2024 Dec 17, 2024
8-K/A 8-K/A 0000357173-22-000035 Apr 20, 2022 Apr 19, 2022
8-K/A 8-K/A 0000357173-22-000020 Feb 16, 2022 Dec 1, 2021
8-K/A 8-K/A 0001104659-13-038944 May 8, 2013 Apr 24, 2013
8-K/A 8-K/A 0001104659-10-015671 Mar 22, 2010 Mar 8, 2010