Old Second Bancorp (OSBC) schedules Q1 2026 results release and webcast

Rhea-AI Filing Summary

Old Second Bancorp, Inc. announced plans to release its financial results for the first quarter of 2026 after the market closes on April 22, 2026. The company will hold an earnings conference call on April 23, 2026 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time), accessible via live webcast through its Investor Relations events page. A replay of the webcast will be available on the same site for up to one year following the call.

Key Figures

Q1 2026 results release date: April 22, 2026 Earnings call date: April 23, 2026 Earnings call time ET: 10:00 a.m. Eastern Time +2 more

5 metrics

Q1 2026 results release date April 22, 2026 Financial results released after market close

Earnings call date April 23, 2026 Conference call discussing Q1 2026 results

Earnings call time ET 10:00 a.m. Eastern Time Scheduled start time for webcast

Earnings call time CT 9:00 a.m. Central Time Corresponding Central Time for webcast

Webcast replay availability Up to one year Replay duration on Investor Relations website

Key Terms

earnings call, webcast, Investor Relations website, Emerging growth company

4 terms

earnings call financial

"We will also host an earnings call on Thursday, April 23, 2026 at 10:00 a.m. Eastern Time"

A scheduled public meeting—usually by phone or webcast—where a company’s executives present recent financial results and answer questions from analysts and investors. It matters because listeners hear both the factual “report card” on past performance and the leaders’ tone and outlook for the future; new details or shifts in confidence can change investor expectations and move the stock price, much like a parent-teacher meeting revealing a student’s progress and plans.

webcast financial

"Investors may listen to our earnings call via a live webcast by accessing the link provided below"

A webcast is a live or recorded online event where people watch or listen to presentations, announcements, or performances through the internet. It’s like a TV broadcast but over the internet, allowing viewers from anywhere to tune in in real time or later. Webcasts are important because they let companies share information quickly and widely with audiences around the world.

Investor Relations website financial

"on the Events section of the Old Second Investor Relations website"

An investor relations website is a company's online page where it shares important information with current and potential investors, like financial results, company news, and future plans. It’s like a company’s official report card that helps people understand how the business is doing and decide whether to invest or stay informed.

Emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Understanding 8-K Material Events →

OLD SECOND BANCORP INC0000357173false00003571732026-04-012026-04-01

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United States

Securities And Exchange Commission
Washington, D.C. 20549

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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): April 1, 2026

(Exact name of registrant as specified in its charter)

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Delaware	000-10537	36-3143493
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

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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:

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Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	OSBC	The Nasdaq Stock Market
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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.  ☐

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Item 8.01 Other Events

Old Second Bancorp, Inc. (the “Company”, “we,” “us” and “our”) will release financial results for the first quarter of 2026 after the market closes on April 22, 2026.

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We will also host an earnings call on Thursday, April 23, 2026 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time).  Investors may listen to our earnings call via a live webcast by accessing the link provided below, or alternatively, on the Events section of the Old Second Investor Relations website (https://investors.oldsecond.com/events). Investors are encouraged to register at the webcast link at least 10 minutes prior to the scheduled start of the call.

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Webcast URL: https://www.webcaster5.com/Webcast/Page/2239/53807

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A replay of the webcast will be available under the Events section of the Old Second Investor Relations website (https://investors.oldsecond.com/events) for up to one year after the earnings call date.

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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.

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​	OLD SECOND BANCORP, INC.
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Dated: April 1, 2026	By:	/s/ Bradley S. Adams
​	​	Bradley S. Adams
​	​	Executive Vice President, Chief Operating Officer and
​	​	Chief Financial Officer

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FAQ

When will Old Second Bancorp (OSBC) report Q1 2026 financial results?

Old Second Bancorp will release its Q1 2026 financial results after the market closes on April 22, 2026. The company also plans an earnings call the next day to discuss these results with investors.

When is the Old Second Bancorp (OSBC) Q1 2026 earnings call scheduled?

The Q1 2026 earnings call is scheduled for April 23, 2026 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time). Investors can access the live webcast through the company’s Investor Relations events page.

How can investors access the Old Second Bancorp (OSBC) Q1 2026 earnings webcast?

Investors can access the Q1 2026 earnings webcast via the provided webcast URL or through the Events section of Old Second’s Investor Relations website. Registration at the webcast link at least 10 minutes before the start is encouraged.

Will a replay of Old Second Bancorp’s (OSBC) Q1 2026 earnings call be available?

A replay of the Q1 2026 earnings call webcast will be available under the Events section of Old Second’s Investor Relations website. The replay will remain accessible for up to one year after the earnings call date.

What time zone is used for Old Second Bancorp’s (OSBC) Q1 2026 earnings call schedule?

The earnings call time is given as 10:00 a.m. Eastern Time and 9:00 a.m. Central Time on April 23, 2026. This dual reference helps investors in different U.S. time zones plan attendance accurately.

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 EX-101.SCH 2.9 KB
• EX-101 EX-101.LAB 15.0 KB
• EX-101 EX-101.PRE 10.1 KB