<SEC-DOCUMENT>0000357173-25-000044.txt : 20250522
<SEC-HEADER>0000357173-25-000044.hdr.sgml : 20250522
<ACCEPTANCE-DATETIME>20250522144511
ACCESSION NUMBER:		0000357173-25-000044
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20250522
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20250522
DATE AS OF CHANGE:		20250522

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OLD SECOND BANCORP INC
		CENTRAL INDEX KEY:			0000357173
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				363143493
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10537
		FILM NUMBER:		25976388

	BUSINESS ADDRESS:	
		STREET 1:		37 S RIVER ST
		CITY:			AURORA
		STATE:			IL
		ZIP:			60507
		BUSINESS PHONE:		6308920202

	MAIL ADDRESS:	
		STREET 1:		37 SOUTH RIVER STREET
		CITY:			AURORA
		STATE:			IL
		ZIP:			60507
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>tmb-20250522x8k.htm
<DESCRIPTION>8-K
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style="font-family:'Times';font-size:10pt;line-height:14pt;text-align:justify;text-indent:0pt;margin:0pt 0pt 10pt 0pt;"><span style="font-family:'Times New Roman','Times','serif';">Securities registered pursuant to Section 12(b) of the Act:</span></p><div style="clear:right;float:right;margin-bottom:1em;margin-left:1.61%;width:100%;"><a id="_f25d6eed_7629_4afa_a308_081eec847f61"></a><a id="Tc_63U1suL26km4HwIlUsH1dA_1_0"></a><a id="Tc_aMSBt1amw0Gm3y9NNEYJTQ_1_1"></a><a id="Tc_dCX0B9ptpE6gH_iCX2-dkA_1_2"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:40.38%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt 8.65pt 0pt 0pt;"><span 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style="font-size:1pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:40.38%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;text-indent:1.2pt;margin:0pt 8.65pt 0pt 0pt;"><b style="font-weight:bold;">Title of each class</b></p></td><td style="vertical-align:bottom;width:24.03%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 8.65pt 0pt 0pt;"><b style="font-weight:bold;">Trading Symbol(s)</b></p></td><td style="vertical-align:top;width:35.58%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt -13.5pt 0pt 0pt;"><b style="font-weight:bold;">Name of each exchange on which registered</b></p></td></tr><tr><td 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style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:center;margin:0pt 8.65pt 0pt 0pt;"><span style="font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr></table></div><p style="font-family:'Times';font-size:10pt;line-height:1.19;text-align:justify;text-indent:0pt;margin:0pt -13.5pt 10pt 0pt;"><span style="font-family:'Times New Roman','Times','serif';">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).</span></p><p style="font-family:'Times';font-size:12pt;line-height:14pt;padding-left:36pt;text-align:justify;text-indent:-36pt;margin:0pt -18pt 10pt 0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;">Emerging growth company &#160;</span><ix:nonNumeric contextRef="Duration_5_22_2025_To_5_22_2025_hfLufe2tG0mWV2P0bCQ3TQ" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="Narr_xFrgHKmAVEqPiXsOl_6-fw"><b style="font-family:'Segoe UI Symbol';font-size:9pt;font-weight:bold;">&#9744;</b></ix:nonNumeric></p><p style="font-family:'Times';font-size:9pt;line-height:14pt;text-align:justify;text-indent:0pt;margin:0pt -9pt 10pt 0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;">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. &#160;</span><b style="font-family:'Segoe UI Symbol';font-weight:bold;">&#9744;</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;padding-bottom:1pt;padding-top:1pt;border-bottom:3.0pt solid #000000;border-top:1.0pt solid #000000;margin:0pt;"><span style="font-size:1pt;font-weight:bold;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="display:none;font-size:12pt;line-height:0pt;margin:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:0pt;visibility:hidden;">&#8203;</span></p></div></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:91.06%;border:0;margin:30pt 4.47% 30pt 4.47%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;margin-left:-10.0pt;margin-right:-10.0pt;max-width:100%;position:relative;width:calc(100% + 20.0pt);"><div style="padding-left:10pt;padding-right:10pt;position:relative;width:100%;"><a id="_c4022498_65bb_4290_ba9c_dab5ab05db9b"></a><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;text-indent:36pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;border:0;"><tr><td style="vertical-align:text-top;white-space:nowrap;width:58.5pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin-bottom:0pt;margin-top:0pt;text-align:justify;"><b style="font-size:10pt;font-weight:bold;">Item 8.01</b></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin-bottom:0pt;margin-top:0pt;text-align:justify;"><b style="font-size:10pt;font-weight:bold;">Other Events.</b></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">On May 22, 2025, Old Second Bancorp, Inc. (&#8220;</span><span style="font-size:10pt;font-style:italic;font-weight:bold;">Old Second</span><span style="font-size:10pt;">&#8221;) announced that it received regulatory approvals for its previously announced merger with Bancorp Financial, Inc. (&#8220;</span><span style="font-size:10pt;font-style:italic;font-weight:bold;">Bancorp Financial</span><span style="font-size:10pt;">&#8221;).</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;text-align:justify;margin:0pt;"><b style="font-size:11pt;font-weight:bold;letter-spacing:-0.05pt;">A</b><b style="font-weight:bold;letter-spacing:-0.05pt;">dditional Information About the Merger and Where to Find It</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"> <span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">This communication is being made in respect of the proposed merger transaction between Old Second and Bancorp Financial. In connection with the proposed merger, Old Second filed a Registration Statement on Form S-4 (Registration No. 333-286687) with the Securities and Exchange Commission (&#8220;SEC&#8221;) on April 23, 2025, which was subsequently amended and declared effective on May 8, 2025. The Registration Statement includes a Proxy Statement of Bancorp Financial and a Prospectus of Old Second, together with other relevant documents regarding the proposed merger. A definitive Proxy Statement/Prospectus was mailed to Bancorp Financial stockholders on or around May 15, 2025, in connection with the solicitation of stockholder approval for the transaction.</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">INVESTORS AND STOCKHOLDERS OF BANCORP FINANCIAL ARE URGED TO READ THE REGISTRATION STATEMENT AND THE PROXY STATEMENT/PROSPECTUS REGARDING THE MERGER AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">A free copy of the Proxy Statement/Prospectus, as well as other filings containing information about Old Second, may be obtained at the SEC&#8217;s Internet site (http://www.sec.gov). You will also be able to obtain these documents, free of charge, from Old Second by accessing Old Second&#8217;s investor relations website, https://investors.oldsecond.com, under the heading &#8220;SEC Filings&#8221; or by directing a request to Old Second Shareholder Relations Manager, Shirley Cantrell, at Old Second Bancorp, Inc., 37 S. River St., Aurora, Illinois 60507, by calling 630-906-2303 or by sending an e-mail to scantrell@oldsecond.com.</span><span style="display:inline-block;width:2.16pt;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:58.5pt;text-align:justify;text-indent:-58.5pt;margin:0pt;"><b style="font-weight:bold;">Participants in the Solicitation</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;padding-left:58.5pt;text-align:justify;text-indent:-58.5pt;margin:0pt;"><span style="font-size:10pt;font-weight:bold;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></span><span style="font-size:10pt;">Old Second and Bancorp Financial and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Bancorp Financial&#8217;s stockholders in connection with the proposed merger. Information regarding Old Second&#8217;s directors and executive officers is contained in Old Second&#8217;s definitive proxy statement on Schedule 14A, dated April 18, 2025 and in certain of its Current Reports on Form 8-K, which are filed with the SEC. Additional information regarding the interests of the participants in the solicitation and other persons who may be deemed participants in the proposed merger is included in the Registration Statement on Form S-4, as amended (File No. 333-286687), which was declared effective by the SEC on May 8, 2025. The Prospectus included in the Rule 424(b)(3) filings, dated May 8, 2025 and May 15, 2025, contains the Proxy Statement/Prospectus for the proposed merger. Free copies of these documents may be obtained as described in the preceding section.</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;font-weight:bold;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="display:inline-block;text-align:left;text-indent:0pt;width:58.5pt;"><b style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:bold;">Item 9.01&#160;</b></span><b style="font-weight:bold;">Financial Statements and Exhibits.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">(d) Exhibits. </p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;table-layout:auto;width:100.28%;"><tr style="height:1pt;"><td style="vertical-align:top;width:12.94%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:2.77%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:84.28%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:top;width:12.94%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><b style="font-weight:bold;">Exhibit No.</b></p></td><td style="vertical-align:top;width:2.77%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:center;margin:0pt;"><span style="font-size:10pt;font-weight:bold;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:84.28%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><b style="font-weight:bold;">Exhibit</b></p></td></tr><tr><td style="vertical-align:top;width:12.94%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">99.1</p></td><td style="vertical-align:top;width:2.77%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:84.28%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><a style="-sec-extract:exhibit;font-family:&quot;'Times New Roman','Times','serif'&quot;;font-size:10pt;" href="tmb-20250522xex99d1.htm"><span style="font-family:'Times New Roman','Times','serif';font-style:normal;font-weight:normal;">Press release dated May 22, 2025</span></a></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></div></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Courier';font-size:12pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;visibility:hidden;">&#8203;</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.3%;border:0;margin:30pt 10.35% 30pt 10.35%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;margin-left:-10.0pt;margin-right:-10.0pt;max-width:100%;position:relative;width:calc(100% + 20.0pt);"><div style="padding-left:10pt;padding-right:10pt;position:relative;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 8.65pt 12pt 0pt;"><b style="font-weight:bold;">Signature</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 8.65pt 0pt 0pt;">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.</p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-indent:36pt;margin:0pt 8.65pt 0pt 0pt;"><span style="font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-indent:36pt;margin:0pt 8.65pt 0pt 0pt;"><span style="font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:1pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:1pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:44.95%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:1pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td colspan="2" style="vertical-align:top;width:49.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><b style="font-weight:bold;">OLD SECOND BANCORP,&#160;INC.</b></p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:44.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:44.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;">Dated: May 22, 2025</p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;">By:</p></td><td style="vertical-align:top;width:44.95%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';">/s/ Bradley S. Adams</span></p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:44.95%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';">Bradley S. Adams</span></p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:44.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;">Executive Vice President,</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;">Chief Operating Officer and</p></td></tr><tr><td style="vertical-align:top;width:50.28%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:4.75%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;"><span style="font-family:'CG Times';font-size:10pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:44.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.25;margin:0pt 8.65pt 0pt 0pt;">Chief Financial Officer</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;margin:0pt;"><span style="font-size:10pt;visibility:hidden;">&#8203;</span></p></div></div></div>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tmb-20250522xex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
<!--Enhanced HTML document created with Toppan Merrill Bridge  10.10.0.134--><!--Created on: 5/22/2025 06:12:48 PM (UTC)--><html><head><meta charset="UTF-8"><title></title></head><body><div style="margin-top:30pt;"></div><div style="max-width:100%;padding-left:11.76%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><font style="font-family:'Times New Roman','Times','serif';visibility:hidden;">&#8203;</font></p><div style="clear:both;"></div><div style="clear:left;float:left;height:6.85pt;width:0pt;"></div><div style="clear:left;float:left;height:72pt;margin-right:9pt;width:220.5pt;z-index:251658240;"><div style="height:71.65pt;left:0pt;padding-bottom:0.35pt;position:relative;width:220.5pt;"><img src="tmb-20250522xex99d1001.jpg" alt="Graphic" style="height:71.65pt;width:220.5pt;"></div></div><p style="font-family:'Arial','Helvetica','sans-serif';font-size:1pt;line-height:1.28;margin-left:0pt;margin-right:0pt;margin-top:0pt;"></p><p style="clear:both;font-family:'Arial','Helvetica','sans-serif';font-size:1pt;line-height:1.28;margin-bottom:8pt;margin-left:0pt;margin-right:0pt;"><font style="font-weight:bold;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt -8.65pt 0pt 0pt;"><font style="font-size:1pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;margin-right:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt -8.65pt 0pt 0pt;"><font style="font-size:1pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;margin-right:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-size:1pt;font-weight:bold;line-height:1.28;visibility:hidden;">&#8203;</font></p><div align="left"><table style="border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0pt;padding-right:0pt;width:99%;"><tr style="height:1pt;"><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-size:1pt;line-height:1.28;visibility:hidden;">&#8203;</font></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-size:1pt;line-height:1.28;visibility:hidden;">&#8203;</font></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-size:1pt;line-height:1.28;visibility:hidden;">&#8203;</font></p></div></div></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="line-height:1.28;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt 0pt 8pt 0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;visibility:hidden;">&#8203;</font></p></td></tr><tr><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:75.1%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">(NASDAQ:OSBC)</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Exhibit 99.1</b></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Contact:</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Bradley S. Adams</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">For Immediate Release</b></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Executive Vice President,</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">May 22, 2025</b></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Chief Operating Officer and</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Chief Financial Officer</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td></tr><tr><td style="vertical-align:bottom;white-space:nowrap;width:10.27%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:bottom;white-space:nowrap;width:64.82%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">(630) 906-5484</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:24.89%;margin:0pt;padding:0pt;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.26;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.19;visibility:hidden;">&#8203;</font></p></td></tr></table></div><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-size:12pt;font-weight:bold;">Old Second Bancorp, Inc. Announces Receipt of Regulatory Approvals to Complete its Merger Transaction with Bancorp Financial, Inc.</b></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-style:italic;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Aurora, Illinois May 22, 2025</b><font style="font-family:'Times New Roman','Times','serif';"> - Old Second Bancorp, Inc. (Nasdaq: OSBC) (&#8220;Old Second&#8221;) announced today that it has received the required bank regulatory approvals to complete its previously announced merger with Oakbrook, IL-based Bancorp Financial, Inc. (&#8220;Bancorp Financial&#8221;), </font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">Completion of the merger remains subject to approval by Bancorp Financial stockholders and the satisfaction of customary closing conditions. Old Second currently expects to close the transaction in July 2025.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">Old Second operates 53 full-service banking branches primarily in the Kane, Cook, DeKalb, DuPage, Kendall, LaSalle and Will counties in Illinois, and Bancorp Financial maintains three banking locations in DuPage and Cook counties in Illinois, and one loan production office in Reno, Nevada. &#160; </font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">&#8220;We are extremely pleased to have reached a significant milestone in receiving the regulatory approvals required to complete the proposed merger with Bancorp Financial,&#8221; commented James Eccher, Chairman, President and Chief Executive Officer of Old Second. &#8220;As we previously announced, we believe the combination of our two banks will significantly enhance our financial strength, competitive position in the Chicago metropolitan market and ability to serve the financial needs of our customers and communities. With overlapping core values and complementary product and service offerings, we believe this merger will create a stronger institution that is well-positioned to grow and &#160;benefit the stockholders of both Old Second and Bancorp Financial.&#8221;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:11.76%;margin-right:8.82%;margin-top:30pt;page-break-after:always;width:79.41%;border-width:0;"><div style="max-width:100%;padding-left:11.76%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Additional Information About the Merger and Where to Find It</b></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">This communication is being made in respect of the proposed merger transaction between Old Second and Bancorp Financial. In connection with the proposed merger, Old Second filed a Registration Statement on Form S-4 (Registration No. 333-286687) with the Securities and Exchange Commission (&#8220;SEC&#8221;) on April 23, 2025, which was subsequently amended and declared effective on May 8, 2025. The Registration Statement includes a Proxy Statement of Bancorp Financial and a Prospectus of Old Second, together with other relevant documents regarding the proposed merger. A definitive Proxy Statement/Prospectus was mailed to Bancorp Financial stockholders on or around May 15, 2025, in connection with the solicitation of stockholder approval for the transaction.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></font><font style="font-family:'Times New Roman','Times','serif';">INVESTORS AND STOCKHOLDERS OF BANCORP FINANCIAL ARE URGED TO READ THE REGISTRATION STATEMENT AND THE PROXY STATEMENT/PROSPECTUS REGARDING THE MERGER AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></font><font style="font-family:'Times New Roman','Times','serif';">A free copy of the Proxy Statement/Prospectus, as well as other filings containing information about Old Second, may be obtained at the SEC&#8217;s Internet site (http://www.sec.gov). You will also be able to obtain these documents, free of charge, from Old Second by accessing Old Second&#8217;s investor relations website, https://investors.oldsecond.com, under the heading &#8220;SEC Filings&#8221; or by directing a request to Old Second Shareholder Relations Manager, Shirley Cantrell, at Old Second Bancorp, Inc., 37 S. River St., Aurora, Illinois 60507, by calling 630-906-2303 or by sending an e-mail to </font>scantrell@oldsecond.com<font style="font-family:'Times New Roman','Times','serif';">.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="display:inline-block;text-align:left;text-indent:0pt;width:36pt;"></font><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Participants in the Solicitation</b></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">Old Second and Bancorp Financial and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Bancorp Financial&#8217;s stockholders in connection with the proposed merger. Information regarding Old Second&#8217;s directors and executive officers is contained in Old Second&#8217;s definitive proxy statement on Schedule 14A, dated April 18, 2025 and in certain of its Current Reports on Form 8-K, which are filed with the SEC. Additional information regarding the interests of the participants in the solicitation and other persons who may be deemed participants in the proposed merger is included in the Registration Statement on Form S-4, as amended (File No. 333-286687), which was declared effective by the SEC on May 8, 2025. The Prospectus included in the Rule 424(b)(3) filings, dated May 8, 2025 and May 15, 2025, contains the Proxy Statement/Prospectus for the proposed merger. Free copies of these documents may be obtained as described in the preceding section.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;visibility:hidden;">&#8203;</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:11.76%;margin-right:8.82%;margin-top:30pt;page-break-after:always;width:79.41%;border-width:0;"><div style="max-width:100%;padding-left:11.76%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><b style="font-family:'Times New Roman','Times','serif';font-weight:bold;">Cautionary Note Regarding Forward-Looking Statement</b></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">Statements included in this press release, which are not historical in nature are intended to be, and hereby are identified as, forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. &#160;Examples of forward-looking statements include, but are not limited to, statements regarding the timing of the closing of the proposed merger. &#160;Words such as &#8220;may,&#8221; &#8220;anticipate,&#8221; &#8220;plan,&#8221; &#8220;estimate,&#8221; &#8220;expect,&#8221; &#8220;believe,&#8221; &#8220;project,&#8221; &#8220;assume,&#8221; &#8220;approximately,&#8221; &#8220;continue,&#8221; &#8220;should,&#8221; &#8220;could,&#8221; &#8220;will,&#8221; &#8220;poised,&#8221; &#8220;focused,&#8221; &#8220;targeted,&#8221; &#8220;opportunity,&#8221; &#8220;plans&#8221; and variations of such words and similar expressions are intended to identify such forward-looking statements.</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;text-indent:36pt;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';">Forward-looking statements are subject to risks, uncertainties and assumptions that are difficult to predict with regard to timing, extent, likelihood and degree of occurrence, which could cause actual results to differ materially from anticipated results. Such risks, uncertainties and assumptions, include, among others, the following: </font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><table border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse;font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;text-align:justify;width:100%;border:0pt;"><tr><td style="width:18pt;"></td><td style="font-family:'Times New Roman','Times','serif';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;">the failure of Bancorp Financial to obtain stockholder approval, or the failure of either company to satisfy any of the other closing conditions to the transaction on a timely basis or at all;</font></td></tr></table><table border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse;font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;text-align:justify;width:100%;border:0pt;"><tr><td style="width:18pt;"></td><td style="font-family:'Times New Roman','Times','serif';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;">the occurrence of any event, change or other circumstances that could give rise to the right of one or both of the parties to terminate the merger agreement; and</font></td></tr></table><table border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse;font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;text-align:justify;width:100%;border:0pt;"><tr><td style="width:18pt;"></td><td style="font-family:'Times New Roman','Times','serif';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><font style="font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;">other factors that may affect future results of Old Second and Bancorp Financial including changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; inflation; customer borrowing, repayment, investment and deposit practices; changes in general economic conditions; the impact, extent and timing of technological changes; capital management activities; and other actions of the Federal Reserve Board and legislative and regulatory actions and reforms.</font></td></tr></table><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.19;text-align:justify;margin:0pt;"><font style="font-family:'Times New Roman','Times','serif';line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Arial','Helvetica','sans-serif';font-size:11pt;line-height:1.28;text-align:justify;text-indent:36pt;margin:0pt 0pt 8pt 0pt;"><font style="font-family:'Times New Roman','Times','serif';">Old Second disclaims any obligation to update or revise any forward-looking statements contained in this press release, which speak only as of the date hereof, whether as a result of new information, future events or otherwise, except as required by law. &#160;Additional factors that could cause results to differ materially from those described above can be found in Old Second&#8217;s Annual Report on Form 10-K for the year ended December 31, 2024, which is on file with the SEC and available on Old Second&#8217;s investor relations website, https://investors.oldsecond.com, under the heading &#8220;SEC Filings,&#8221; and in other documents Old Second files with the SEC. </font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-left:11.76%;margin-right:8.82%;margin-top:30pt;page-break-after:avoid;width:79.41%;border-width:0;"></body></html>
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<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>tmb-20250522.xsd
<DESCRIPTION>EX-101.SCH
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Toppan Merrill Bridge  10.10.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 5/22/2025 6:12:58 PM-->
<!--Modified on: 5/22/2025 6:12:58 PM-->
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        <link:usedOn>link:definitionLink</link:usedOn>
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</xsd:schema>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>tmb-20250522_lab.xml
<DESCRIPTION>EX-101.LAB
<TEXT>
<XBRL>
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<!--Created on: 5/22/2025 6:12:58 PM-->
<!--Modified on: 5/22/2025 6:12:58 PM-->
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1" xlink:label="dei_EntityAddressAddressLine1" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown" xlink:label="dei_EntityAddressCityOrTown" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode" xlink:label="dei_EntityAddressPostalZipCode" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity Address, Postal Zip Code</label>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode" xlink:label="dei_CityAreaCode" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CityAreaCode_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">City Area Code</label>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber" xlink:label="dei_LocalPhoneNumber" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_WrittenCommunications" xlink:label="dei_WrittenCommunications" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SolicitingMaterial" xlink:label="dei_SolicitingMaterial" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementTenderOffer" xlink:label="dei_PreCommencementTenderOffer" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="dei_PreCommencementIssuerTenderOffer" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle" xlink:label="dei_Security12bTitle" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>tmb-20250522_pre.xml
<DESCRIPTION>EX-101.PRE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Toppan Merrill Bridge  10.10.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 5/22/2025 6:12:58 PM-->
<!--Modified on: 5/22/2025 6:12:58 PM-->
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>May 22, 2025</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_osbc_DocumentAndEntityInformationAbstract', window );"><strong>Document and Entity Information [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">May 22,  2025<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">OLD SECOND BANCORP INC<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">000-10537<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">36-3143493<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">37 South River Street<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Aurora<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">IL<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">60507<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">630<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">892-0202<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">true<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">OSBC<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000357173<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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