Old Second Bancorp Files 8-K

TL;DR

OSBC filed a routine 8-K on Oct 1, 2025, no major news.

AI Summary

On October 1, 2025, OLD SECOND BANCORP INC filed an 8-K report. The filing indicates no specific material events or changes requiring immediate disclosure beyond routine reporting requirements. The company, incorporated in Delaware, maintains its principal executive offices at 37 South River Street, Aurora, Illinois.

Why It Matters

This 8-K filing from Old Second Bancorp Inc. serves as a standard disclosure, indicating no significant new events have occurred that require immediate reporting to the SEC.

Risk Assessment

Risk Level: low — The filing is a standard 8-K report with no disclosed material events, suggesting no immediate new risks or significant changes.

Key Players & Entities

• OLD SECOND BANCORP INC (company) — Registrant
• October 1, 2025 (date) — Date of earliest event reported
• 37 South River Street, Aurora, Illinois (location) — Principal executive offices

FAQ

Filing Documents

• tmb-20251001x8k.htm (8-K) — 33KB
• tmb-20251001x8k001.jpg (GRAPHIC) — 11KB
• 0000357173-25-000084.txt ( ) — 170KB
• tmb-20251001.xsd (EX-101.SCH) — 3KB
• tmb-20251001_lab.xml (EX-101.LAB) — 15KB
• tmb-20251001_pre.xml (EX-101.PRE) — 10KB
• tmb-20251001x8k_htm.xml (XML) — 5KB

From the Filing

OLD SECOND BANCORP INC_October 1, 2025 I United States Securities And Exchange Commission Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2025 (Exact name of registrant as specified in its charter) Delaware 000-10537 36-3143493 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 37 South River Street Aurora , Illinois 60507 (Address of principal executive offices) (Zip code) ( 630 ) 892-0202 (Registrant's telephone number, including area code) N/A (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below): Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock OSBC The Nasdaq Stock Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2). Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. I tem 8.01 Other Events Old Second Bancorp, Inc. (the "Company", "we," "us" and "our") will release financial results for the third quarter of 2025 after the market closes on October 22, 2025. We will also host an earnings call on Thursday, October 23, 2025 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time). Investors may listen to our earnings call via telephone by dialing 888-506-0062, using Entry Code: 740004. Investors should call into the dial-in number set forth above at least 10 minutes prior to the scheduled start of the call. A replay of the earnings call will be available until 10:00 a.m. Eastern Time (9:00 a.m. Central Time) October 30, 2025, by dialing 877-481-4010, using Replay PIN: 53047. Signature Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. OLD SECOND BANCORP, INC. Dated: October 1, 2025 By: /s/ Bradley S. Adams Bradley S. Adams Executive Vice President, Chief Operating Officer and Chief Financial Officer 2

View Full Filing

View this 8-K filing on SEC EDGAR