Boardroom Alpha
Boardroom Alpha
OSBC · Current Report (Form 8-K) · Filed June 25, 2026

Old Second Bancorp Inc — Current Report (Form 8-K)

Form
8-K
Filed
June 25, 2026
Period
Jun 25, 2026
Ticker
OSBC
Accession
0000357173-26-000030
Boardroom Alpha · Filing insights

Old Second Bancorp approves new share repurchase program up to $61.2M for 7/1/26-6/30/27; Fed nonobjection.

Buyback authorized
About Old Second Bancorp Inc
Market cap
$1.3B
1Y TSR
+47.4%
3Y TSR
+20.5%
Board grade
B+
Sector
Financial Services
CEO
James Eccher
Last annual meeting: May 19, 2026 · View full Old Second Bancorp Inc profile →
OLD SECOND BANCORP INC_June 25, 2026

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): June 25, 2026

Graphic

(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))

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock

OSBC

The Nasdaq Stock Market

Securities registered pursuant to Section 12(b) of the Act:

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.  

Item 8.01

Other Events.

The Board of Directors of Old Second Bancorp, Inc. (the “Company”) has authorized a new share repurchase program under which the Company may repurchase up to $61.2 million of additional shares of the Company’s common stock from July 1, 2026 through June 30, 2027 (the “Repurchase Program”). The Company has received nonobjection from the Federal Reserve Bank of Chicago to the Repurchase Program.

Repurchases by the Company under the Repurchase Program may be made from time to time through open market purchases, trading plans established in accordance with U.S. Securities and Exchange Commission rules, privately negotiated transactions, or by other means. The actual means and timing of any repurchases, quantity of purchased shares and prices will be, subject to certain limitations, at the discretion of management and will depend on a number of factors, including, without limitation, market prices of the Company’s common stock, general market and economic conditions, and applicable legal and regulatory requirements. Repurchases under the Repurchase Program may be initiated, discontinued, suspended or restarted at any time. The Company is not obligated to repurchase any shares under the Repurchase Program.

The Company’s existing share repurchase plan is scheduled to expire on June 30, 2026.

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: June 25, 2026

By:

/s/ Bradley S. Adams

Bradley S. Adams

Executive Vice President,

Chief Operating Officer, and

Chief Financial Officer

From this filing to the watchlist

Catch material events the day they file.

Boardroom Alpha's monitors flag CEO/CFO transitions, restatements, going-concern risk, auditor changes, and 8-K events the day they hit EDGAR — across 6,000+ U.S. public companies. Daily digest by watchlist, API-accessible.

Independent — issuer-pays-free, ideology-free, U.S.-owned.

More filings

Other filings from Old Second Bancorp Inc (OSBC)

Reference

Frequently asked questions

When did Old Second Bancorp Inc file this 8-K?
Old Second Bancorp Inc (OSBC) filed this Current Report (Form 8-K) with the SEC on June 25, 2026. The accession number assigned by EDGAR is 0000357173-26-000030.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Old Second Bancorp approves new share repurchase program up to $61.2M for 7/1/26-6/30/27; Fed nonobjection. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What events did Boardroom Alpha flag in this filing?
BA's event-extraction layer identified this signal in the filing text: "Buyback authorized". It appears above the filing body as a labeled pill.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Old Second Bancorp Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Old Second Bancorp Inc has filed under CIK 357173, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
Disclaimer

The opinions and information contained herein have been obtained or derived from sources believed to be reliable, but Boardroom Alpha cannot guarantee its accuracy and completeness, and that of the opinions based thereon.

This report contains opinions and is provided for informational purposes only – it does not constitute investment, legal or tax advice. You should not rely solely upon the research herein for purposes of transacting securities or other investments, and you are encouraged to conduct your own research and due diligence, and to seek the advice of a qualified securities professional before you make any investment.

None of the information contained in this report constitutes, or is intended to constitute a recommendation by Boardroom Alpha of any particular security or trading strategy or a determination by Boardroom Alpha that any security or trading strategy is suitable for any specific person. To the extent any of the information contained herein may be deemed to be investment advice, such information is impersonal and not tailored to the investment needs of any specific person.

No representation or warranty, expressed or implied, is made on behalf of Boardroom Alpha as to the accuracy or completeness of the information contained herein. Boardroom Alpha does not accept any liability for any direct, indirect or consequential loss or damage suffered by any person as a result of relying on all or any part of this research and any liability is expressly disclaimed.

Full disclaimer