| Sep 23, 2026 (view filing)6:34 PM ET | Sep 23 | Same day | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −16.0K | $24.69 | −$395.1K | −53.1%14.1K after | |
| Sep 11, 2026 (view filing)11:50 AM ET | Sep 4 | 7 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −5.00K | $25.71 | −$128.5K | −8.6%53.1K after | |
| Sep 8, 2026 (view filing)5:17 PM ET | Sep 8 | Same day | McLean Hugh HDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −25.0K | $25.63 | −$640.8K | −15.6%135.4K after | |
| Sep 3, 2026 (view filing)5:33 PM ET | Sep 2 | 1 day | Campbell Darin PatrickPresident, Powersports Lending | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −24.0K | $25.53 | −$612.8K | −8.7%250.6K after | |
| Aug 13, 2026 (view filing)10:47 AM ET | Aug 12 | 1 day | Eccher JamesCHAIRMAN AND CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −19.3K | $25.61 | −$494.7K | −6.0%303.4K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 12, 2026 (view filing)4:52 PM ET | Aug 11 | 1 day | Eccher JamesCHAIRMAN AND CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −55.7K | $25.46 | −$1.42M | −14.7%322.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 26, 2026 (view filing) | May 22 | 4 days | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −5.12K | $21.12 | −$108.1K | −8.1%58.1K after | |
| May 21, 2026 (view filing) | May 21 | Same day | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −10.0K | $21.12 | −$211.2K | −13.7%63.3K after | |
| May 12, 2026 (view filing) | May 11 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +24 | $20.90 | +$501.6 | +0.1%20.1K after | |
| May 11, 2026 (view filing) | May 11 | Same day | Pilmer DonaldEVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −25.0K | $20.75 | −$518.8K | −34.2%48.1K after | |
| May 11, 2026 (view filing) | May 8 | 3 days | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −10.0K | $21.24 | −$212.4K | −24.9%30.1K after | |
| May 11, 2026 (view filing) | May 8 | 3 days | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −5.00K | $21.23 | −$106.2K | −6.4%73.3K after | |
| Mar 23, 2026 (view filing) | Mar 20 | 3 days | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −22.2K | $19.38 | −$429.3K | −35.6%40.1K after | |
| Feb 19, 2026 (view filing) | Feb 18 | 1 day | Campbell Darin PatrickPresident, Powersports Lending | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −35.0K | $20.94 | −$732.9K | −11.3%274.6K after | |
| Feb 18, 2026 (view filing) | Feb 13 | 5 days | Campbell Darin PatrickPresident, Powersports Lending | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −91 | $20.70 | −$1.88K | 0.0%309.6K after | |
| Feb 5, 2026 (view filing) | Feb 5 | Same day | Gartelmann Richard A JREVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −2.00K | $20.98 | −$42.0K | −7.4%24.9K after | |
| Jan 16, 2026 (view filing) | Jan 15 | 1 day | Ladowicz JohnDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.76K | $20.95 | −$99.8K | −3.2%144.9K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 9, 2025 (view filing) | Dec 9 | Same day | Ladowicz JohnDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −12.5K | $20.00 | −$250.0K | −7.7%149.7K after | |
| Nov 26, 2025 (view filing) | Nov 26 | Same day | Ladowicz JohnDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −13.2K | $19.01 | −$250.0K | −7.5%162.2K after | |
| Nov 7, 2025 (view filing) | Oct 30-31 | 8 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Campbell Darin PatrickPresident, Powersports Lending | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old second Bancorp Inc., Common Stock | −57.6K | $18.06 | −$1.04M | −64.9%31.2K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Aug 5, 2025 (view filing) | Aug 4 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +25 | $16.61 | +$415.25 | +0.1%16.9K after | |
| Feb 11, 2025 (view filing) | Feb 10 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +22 | $19.02 | +$418.44 | +0.2%13.8K after | |
| Dec 26, 2024 (view filing) | Dec 23 | 3 days | Temple Rocks PattiDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +5.63K | $17.79 | +$100.1K | +43.1%18.7K after | |
| Nov 12, 2024 (view filing) | Nov 6 | 6 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Ladowicz JohnDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −13.9K | $18.27 | −$253.7K | −7.3%175.3K after | |
| Nov 5, 2024 (view filing) | Nov 4 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +26 | $16.15 | +$419.9 | +0.2%13.8K after | |
| Aug 6, 2024 (view filing) | Aug 5 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +23 | $14.86 | +$341.78 | +0.2%13.8K after | |
| Jul 23, 2024 (view filing) | Jul 22 | 1 day | Ladowicz JohnDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −30.6K | $16.22 | −$496.1K | −13.9%189.2K after | |
| May 9, 2024 (view filing) | May 8 | 1 day | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −21.0K | $14.23 | −$298.9K | −31.1%46.6K after | |
| May 7, 2024 (view filing) | May 6 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +24 | $14.44 | +$346.56 | +0.2%13.7K after | |
| Apr 24, 2024 (view filing) | Apr 23 | 1 day | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −15.0K | $14.55 | −$218.3K | −19.5%61.8K after | |
| Apr 24, 2024 (view filing) | Apr 22-23 | 2 days | Collins Gary SVICE CHAIRMAN | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −25.3K | $14.56 | −$367.9K | −21.9%89.9K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Feb 7, 2024 (view filing) | Feb 6 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +26 | $13.46 | +$349.96 | +0.3%8.45K after | |
| Mar 28, 2023 (view filing) | Jun 9, 2022 | 292 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Williams John JRDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +3.00K | $15.13 | +$45.4K | +42.1%10.1K after | |
| Dec 19, 2022 (view filing) | Dec 16 | 3 days | Collins Gary SVICE CHAIRMAN | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +900 | $16.04 | +$14.4K | +0.7%127.8K after | |
| Nov 3, 2022 (view filing) | Nov 2 | 1 day | Finn BarryDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +10.0K | $16.44 | +$164.4K | +13.2%85.7K after | |
| Sep 19, 2022 (view filing) | Sep 16 | 3 days | Collins Gary SVICE CHAIRMAN | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +1.00K | $13.35 | +$13.3K | +0.8%126.9K after | |
| May 19, 2022 (view filing) | May 18 | 1 day | Finn BarryDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +4.00K | $14.18 | +$56.7K | +5.6%75.7K after | |
| Apr 11, 2022 (view filing) | Apr 11 | Same day | Skoglund William BDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.56K | $14.20 | −$64.7K | −6.9%62.0K after | |
| Mar 14, 2022 (view filing) | Mar 14 | Same day | Skoglund William BDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.56K | $14.46 | −$65.9K | −6.4%66.5K after | |
| Feb 14, 2022 (view filing) | Feb 14 | Same day | Skoglund William BDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.56K | $14.31 | −$65.2K | −6.0%71.1K after | |
| Feb 9, 2022 (view filing) | Feb 8 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +23 | $14.42 | +$331.66 | +0.2%13.5K after | |
| Jan 10, 2022 (view filing) | Jan 10 | Same day | Skoglund William BDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.56K | $13.44 | −$61.2K | −5.8%74.1K after | |
| Nov 8, 2021 (view filing) | Nov 8 | Same day | Skoglund William BDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Old Second Bancorp, Inc. Common Stock | −4.56K | $14.01 | −$63.8K | −5.3%81.7K after | |
| Sep 23, 2021 (view filing) | Sep 22 | 1 day | Lyons Billy J Jr.Director | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +200 | $11.86 | +$2.37K | +1.5%13.5K after | |
| Sep 21, 2021 (view filing) | Sep 20 | 1 day | Collins Gary SVICE CHAIRMAN | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +500 | $11.82 | +$5.91K | +0.5%111.5K after | |
| Sep 17, 2021 (view filing) | Sep 16 | 1 day | Pilmer DonaldEVP | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +1.50K | $12.10 | +$18.1K | – | |
| Sep 7, 2021 (view filing) | Sep 1-3 | 6 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | McLean Hugh HDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +10.0K | $11.78 | +$117.8K | +6.9%154.2K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Sep 2, 2021 (view filing) | Aug 23 | 10 days | Bonifas EdwardDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +3.35K | $11.88 | +$39.8K | +2.0%170.7K after | AmendedAn amended filing (for example Form 4/A or 13F-HR/A) that corrects or adds to an earlier filing. |
| Aug 20, 2021 (view filing) | Aug 19 | 1 day | Tapscott James FDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +1.58K | $11.79 | +$18.6K | +4.0%41.3K after | |
| Aug 19, 2021 (view filing) | Aug 18-19 | 1 day | Klaeser Dennis LDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Old Second Bancorp, Inc. Common Stock | +42.0K | $12.00 | +$503.8K | +2,800.0%43.5K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
