OSBC · Current Report (Form 8-K) · Filed May 19, 2026

Old Second Bancorp Inc — 8-K exhibit

osbc-20260519xex99d1.htm

Old Second Bancorp Inc on Boardroom Alpha



(NASDAQ:OSBC)		Exhibit 99.1

Contact:	Bradley S. Adams	For Immediate Release
	Executive Vice President,	May 19, 2026
	Chief Operating Officer and Chief Financial Officer (630) 906-5484

Old Second Bancorp, Inc. Annual Stockholders Meeting

AURORA, IL, – Old Second Bancorp, Inc. (“Old Second”) (NASDAQ: OSBC), announced the Annual Stockholders Meeting will be held on May 19, 2026 at 9:00 am CDT.

Shareholders and investors may access the presentation made at the meeting under the Presentations tab on the Investor Relations section of Old Second’s website (www.oldsecond.com).

About Old Second Bancorp, Inc.

Old Second Bancorp, Inc., is a financial services company with its main headquarters located in Aurora, Illinois. The Company is the holding company of Old Second National Bank (the “Bank”), a national banking organization headquartered in Aurora, Illinois that provides commercial and retail banking services, as well as a full complement of trust and wealth management services. The Company has offices located in Cook, DeKalb, DuPage, Kane, Kendall, LaSalle and Will counties in Illinois.

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