Old Second Bancorp Files Definitive Proxy Statement

Ticker: OSBC · Form: DEFA14A · Filed: 2026-04-06T11:17:25-04:00

Sentiment: neutral

Topics: proxy-filing, regulatory, shareholder-materials

Related Tickers: OSBC

TL;DR

OSBC filed proxy docs for 2024 year-end. Shareholders vote soon.

AI Summary

Old Second Bancorp Inc. filed a Definitive Proxy Statement (DEFA14A) on April 6, 2026, related to its fiscal year ending December 31, 2024. The filing includes additional definitive proxy soliciting materials. The company's principal executive offices are located at 37 South River Street, Aurora, IL 60507.

Why It Matters

This filing provides shareholders with important information regarding the company's governance and any proposals to be voted on at upcoming shareholder meetings, impacting their investment decisions.

Risk Assessment

Risk Level: low — This is a routine regulatory filing (DEFA14A) and does not inherently indicate new risks.

Key Numbers

Key Players & Entities

FAQ

What type of filing is this DEFA14A for Old Second Bancorp Inc.?

This is a Definitive Proxy Statement (DEFA14A) and Rule 14(a)(12) material, used for soliciting proxies from shareholders.

When was this filing accepted by the SEC?

The filing was accepted on 2026-04-06 at 11:17:25.

What is the CIK number for Old Second Bancorp Inc.?

The CIK number for Old Second Bancorp Inc. is 0000357173.

Where are Old Second Bancorp Inc.'s principal offices located?

The company's mailing and business address is 37 South River Street, Aurora, IL 60507.

What is the SIC code associated with Old Second Bancorp Inc.?

The SIC code is 6022, which corresponds to State Commercial Banks.

From the Filing

EDGAR Filing Documents for 0001104659-26-039830 This page uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser. SEC.gov EDGAR Latest Filings Filings search tools Filing Detail SEC Home » Company Search » Current Page Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material: SEC Accession No. 0001104659-26-039830 Filing Date 2026-04-06 Accepted 2026-04-06 11:17:25 Documents 3 Document Format Files Seq Description Document Type Size 1 DEFA14A osbc-20241231xdefa14a.htm DEFA14A 15191 2 GRAPHIC osbc-20241231xdefa14a_bg001.jpg GRAPHIC 148094 3 GRAPHIC osbc-20241231xdefa14a_bg002.jpg GRAPHIC 105721 Complete submission text file 0001104659-26-039830.txt 358433 Mailing Address 37 SOUTH RIVER STREET AURORA IL 60507 Business Address 37 S RIVER ST AURORA IL 60507 6308920202 OLD SECOND BANCORP INC (Filer) CIK : 0000357173 (see all company filings) EIN. : 363143493 | State of Incorp.: DE | Fiscal Year End: 1231 Type: DEFA14A | Act: 34 | File No.: 000-10537 | Film No.: 26839980 SIC : 6022 State Commercial Banks (CF Office: 02 Finance)

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