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<title>Old Second Bancorp Inc. (OSBC) on GreekSoup</title>
<link>https://greeksoup.ai/stocks/us/osbc/</link>
<description>Every dated entry in the public record on Old Second Bancorp Inc.: results, filings, insider trades and the rest, from the filings, the last 90 days.</description>
<language>en</language>
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<lastBuildDate>Fri, 30 Oct 2026 00:00:00 +0000</lastBuildDate>
<item><title>Old Second Bancorp Inc. filed 8-K: results of operations</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-10-21:88e3e4cc1d</guid><pubDate>Wed, 21 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000057/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. filed 8-K: other events</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-10-20:4c224c5cc5</guid><pubDate>Tue, 20 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000055/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. filed 8-K: officer or director change</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-10-19:d064cb26b3</guid><pubDate>Mon, 19 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000052/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: short interest 3,040,735 shares at the 15 October 2026 settlement, 4.80 days to cover</title><link>https://greeksoup.ai/stocks/us/osbc/short-interest/</link><guid isPermaLink="false">us:OSBC:short-interest:2026-10-15:1fb228a605</guid><pubDate>Thu, 15 Oct 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Schedule 13G filed by Dimensional Fund Advisors LP, 5.1% of the class</title><link>https://greeksoup.ai/stocks/us/osbc/holders/</link><guid isPermaLink="false">us:OSBC:schedule-13:2026-10-08:4a227ccc51</guid><pubDate>Thu, 08 Oct 2026 00:00:00 +0000</pubDate><category>Schedule 13D/13G</category><description><![CDATA[<p>Schedule 13D/13G. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035420426001084/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/holders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. filed 8-K: other events</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-10-01:26f19a0576</guid><pubDate>Thu, 01 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000050/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: short interest 2,745,379 shares at the 30 September 2026 settlement, 5.36 days to cover</title><link>https://greeksoup.ai/stocks/us/osbc/short-interest/</link><guid isPermaLink="false">us:OSBC:short-interest:2026-09-30:c249aec05e</guid><pubDate>Wed, 30 Sep 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Form 144, COLLINS GARY S plans to sell 20,000 shares worth $493,000 around 23 September 2026</title><link>https://greeksoup.ai/stocks/us/osbc/planned-sales/</link><guid isPermaLink="false">us:OSBC:planned-sale:2026-09-23:be19fc2b29</guid><pubDate>Wed, 23 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/357173/000194984626000595/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Collins Gary S (VICE CHAIRMAN) sold 16,000 shares at $24.69 on 23 September 2026, $395,080</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-09-23:27068c7e5f</guid><pubDate>Wed, 23 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000118476626000022/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: short interest 2,469,231 shares at the 15 September 2026 settlement, 5.67 days to cover</title><link>https://greeksoup.ai/stocks/us/osbc/short-interest/</link><guid isPermaLink="false">us:OSBC:short-interest:2026-09-15:4943f1c5d7</guid><pubDate>Tue, 15 Sep 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Collins Gary S (VICE CHAIRMAN), iRA, sold 5,000 shares at $25.70 on 4 September 2026, $128,525</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-09-11:bb29d964ae</guid><pubDate>Fri, 11 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000118476626000020/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Form 144, HUGH H. MCLEAN plans to sell 25,000 shares worth $641,912 around 8 September 2026</title><link>https://greeksoup.ai/stocks/us/osbc/planned-sales/</link><guid isPermaLink="false">us:OSBC:planned-sale:2026-09-08:e46e90adb8</guid><pubDate>Tue, 08 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/357173/000196922326001003/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Mclean Hugh H (Director) sold 25,000 shares at $25.63 on 8 September 2026, $640,768</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-09-08:3f4e22b8be</guid><pubDate>Tue, 08 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000118476426000008/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Mclean Hugh H (Director) sold 25,000 shares at $25.73 on 3 September 2026, $643,175</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-09-03:144a965172</guid><pubDate>Thu, 03 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000118476426000004/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Campbell Darin Patrick (President, Powersports Lending) sold 24,000 shares at $25.53 on 2 September 2026, $612,792</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-09-03:77c1a96230</guid><pubDate>Thu, 03 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000207413226000008/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Form 144, Campbell Darin Patrick plans to sell 24,000 shares worth $615,360 around 2 September 2026</title><link>https://greeksoup.ai/stocks/us/osbc/planned-sales/</link><guid isPermaLink="false">us:OSBC:planned-sale:2026-09-02:87694d1a45</guid><pubDate>Wed, 02 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/357173/000194984626000561/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: short interest 2,002,571 shares at the 31 August 2026 settlement, 5.55 days to cover</title><link>https://greeksoup.ai/stocks/us/osbc/short-interest/</link><guid isPermaLink="false">us:OSBC:short-interest:2026-08-31:d4b3d43eb7</guid><pubDate>Mon, 31 Aug 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. filed S-3ASR: s-3asr</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-08-18:3da0790d74</guid><pubDate>Tue, 18 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000048/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: short interest 1,828,676 shares at the 14 August 2026 settlement, 4.34 days to cover</title><link>https://greeksoup.ai/stocks/us/osbc/short-interest/</link><guid isPermaLink="false">us:OSBC:short-interest:2026-08-14:4a9f680a3a</guid><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Eccher James (CHAIRMAN AND CEO) sold 19,313 shares (under a trading plan set in advance) at $25.61 on 12 August 2026, $494,701</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-08-13:4725da35f9</guid><pubDate>Thu, 13 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000131410926000014/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Eccher James (CHAIRMAN AND CEO) sold 55,687 shares (under a trading plan set in advance) at $25.46 on 11 August 2026, $1.4 million</title><link>https://greeksoup.ai/stocks/us/osbc/insiders/</link><guid isPermaLink="false">us:OSBC:insider:2026-08-12:2a867dddd4</guid><pubDate>Wed, 12 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/357173/000131410926000012/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc.: Form 144, Eccher James plans to sell 75,000 shares worth $1.9 million around 11 August 2026</title><link>https://greeksoup.ai/stocks/us/osbc/planned-sales/</link><guid isPermaLink="false">us:OSBC:planned-sale:2026-08-11:e7c9456dd7</guid><pubDate>Tue, 11 Aug 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/357173/000194984626000491/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. Q2 FY2026 results: revenue $97 million, net income $28 million</title><link>https://greeksoup.ai/stocks/us/osbc/results/fy2026-q2/</link><guid isPermaLink="false">us:OSBC:result:2026-08-06:3db35d3a13</guid><pubDate>Thu, 06 Aug 2026 00:00:00 +0000</pubDate><category>Results</category><description><![CDATA[<p>Results. <a href="https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0000357173&amp;type=10-&amp;dateb=&amp;owner=include&amp;count=40">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/results/fy2026-q2/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Old Second Bancorp Inc. filed 10-Q: 10-q</title><link>https://greeksoup.ai/stocks/us/osbc/filings/</link><guid isPermaLink="false">us:OSBC:filing:2026-08-06:f50141e0a1</guid><pubDate>Thu, 06 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/357173/000035717326000045/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/osbc/filings/">The page on GreekSoup</a>.</p>]]></description></item>
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