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Old Second Bancorp (OSBC) Institutional Ownership

Old Second Bancorp logo
$24.61 -0.25 (-1.01%)
Closing price 10/9/2026 04:00 PM Eastern
Extended Trading
$24.60 0.00 (-0.02%)
As of 10/9/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Old Second Bancorp (NASDAQ:OSBC)

Current
Institutional Ownership
Percentage
67.76%
Number of
Institutional Buyers
(last 12 months)
121
Total
Institutional Inflows
(last 12 months)
$329.46M
Number of
Institutional Sellers
(last 12 months)
62
Total
Institutional Outflows
(last 12 months)
$47.29M
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OSBC Institutional Buying and Selling by Quarter

Old Second Bancorp Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/6/2026Congress Asset Management Co.411,201$10.07M0.1%+21.4%0.808%
9/9/2026Integrated Wealth Concepts LLC1,868$44K0.0%N/A0.004%
9/9/2026NewEdge Advisors LLC8,660$202K0.0%N/A0.017%
9/9/2026Squarepoint Ops LLC167,884$3.92M0.0%-1.6%0.330%
8/20/2026Susquehanna Fundamental Investments LLC50,693$1.18M0.0%+208.6%0.100%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC76,132$1.78M0.0%+12.7%0.150%
8/19/2026Hsbc Holdings PLC66,312$1.54M0.0%-22.2%0.130%
8/19/2026Wellington Management Group LLP544,345$12.69M0.0%-36.5%1.070%
8/18/2026Empowered Funds LLC248,627$5.80M0.0%N/A0.489%
8/17/2026Bank of America Corp DE372,648$8.69M0.0%N/A0.732%
8/15/2026Jupiter Topco LLC26,232$612K0.0%N/A0.052%
8/14/2026Hsbc Holdings PLC66,312$1.54M0.0%N/A0.130%
8/14/2026Legal & General Group Plc40,578$946K0.0%N/A0.080%
8/14/2026The Manufacturers Life Insurance Company872,651$20.35M0.0%N/A1.715%
8/13/2026Sanctuary Advisors LLC33,909$791K0.0%N/A0.067%
8/13/2026Davis Asset Management L.P.1,800,000$41.98M1.1%N/A3.538%
8/12/2026Ieq Capital LLC50,309$1.17M0.0%N/A0.099%
8/11/2026MSH Capital Advisors LLC84,826$1.98M0.3%N/A0.167%
8/10/2026Great Lakes Advisors LLC203,909$4.76M0.0%N/A0.396%
8/7/2026BlackRock Inc.4,298,683$100.25M0.0%N/A8.358%
8/7/2026Deutsche Bank AG51,034$1.19M0.0%N/A0.099%
8/6/2026Bank of New York Mellon Corp342,013$7.98M0.0%N/A0.665%
8/6/2026GSA Capital Partners LLP34,819$812K0.1%N/A0.068%
6/3/2026Parallel Advisors LLC2,622$53K0.0%+181.3%0.005%
5/19/2026Bank of America Corp DE331,330$6.68M0.0%-3.3%0.644%
5/19/2026Janus Henderson Group PLC26,232$529K0.0%+67.8%0.051%
5/18/2026Amundi13,706$276K0.0%N/A0.027%
5/18/2026Royal Bank of Canada31,569$637K0.0%-9.4%0.061%
5/18/2026Empowered Funds LLC233,559$4.71M0.0%+6.1%0.454%
5/16/2026The Manufacturers Life Insurance Company878,670$17.71M0.0%-1.5%1.708%
5/16/2026Quantinno Capital Management LP49,879$1.01M0.0%+58.8%0.097%
5/15/2026Jacobs Asset Management LLC150,000$3.02M1.8%-46.7%0.292%
5/14/2026Renaissance Technologies LLC90,225$1.82M0.0%+4.5%0.175%
5/14/2026Arrowstreet Capital Limited Partnership141,026$2.84M0.0%-34.9%0.274%
5/14/2026Sei Investments Co.203,088$4.09M0.0%+73.5%0.395%
5/13/2026Cetera Investment Advisers11,702$236K0.0%-27.0%0.023%
5/13/2026First Trust Advisors LP18,760$378K0.0%-10.3%0.036%
5/7/2026Dimensional Fund Advisors LP2,388,862$48.16M0.0%+5.7%4.614%
5/7/2026Parallel Advisors LLC2,622$53K0.0%+181.3%0.005%
5/7/2026Sentinel Trust Co. LBA14,051$283K0.0%-25.5%0.027%
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5/6/2026Bartlett & CO. Wealth Management LLC6,299$130K0.0%-48.6%0.012%
5/5/2026Bank of New York Mellon Corp337,264$6.80M0.0%-2.0%0.651%
5/4/2026Principal Financial Group Inc.75,090$1.51M0.0%+50.8%0.145%
4/30/2026Hsbc Holdings PLC85,183$1.72M0.0%+6.3%0.165%
4/28/2026Hudson Edge Investment Partners Inc.32,082$647K0.1%-44.9%0.062%
4/27/2026Y Intercept Hong Kong Ltd52,576$1.06M0.0%N/A0.102%
4/23/2026Forum Financial Management LP205,661$4.15M0.1%-1.5%0.397%
4/22/2026Sterling Capital Management LLC1,671$34K0.0%-93.2%0.003%
4/22/2026River Street Advisors LLC746,660$15.05M5.1%+104.0%1.442%
4/20/2026Assenagon Asset Management S.A.17,860$360K0.0%N/A0.034%
4/17/2026Sara Bay Financial94,063$1.90M0.6%-5.0%0.182%
4/16/2026SG Americas Securities LLC11,371$229K0.0%-49.5%0.022%
3/17/2026Rockefeller Capital Management L.P.1,396$27K0.0%N/A0.003%
3/9/2026EMC Capital Management7,170$140K0.1%-15.0%0.014%
3/6/2026Hsbc Holdings PLC80,105$1.56M0.0%+135.2%0.152%
2/19/2026Invesco Ltd.80,545$1.57M0.0%+4.6%0.153%
2/18/2026Mercer Global Advisors Inc. ADV14,445$282K0.0%+11.8%0.027%
2/18/2026Empowered Funds LLC220,121$4.29M0.0%+10.9%0.418%
2/18/2026Wellington Management Group LLP969,708$18.91M0.0%+521.2%1.841%
2/18/2026Millennium Management LLC313,560$6.11M0.0%N/A0.595%
2/18/2026Bridgeway Capital Management LLC427,617$8.34M0.2%-15.3%0.812%
2/17/2026AQR Capital Management LLC447,118$8.72M0.0%-13.7%0.849%
2/17/2026Price T Rowe Associates Inc. MD34,262$669K0.0%+6.3%0.065%
2/17/2026Osaic Holdings Inc.27,984$546K0.0%+6.9%0.053%
2/17/2026Adage Capital Partners GP L.L.C.243,192$4.74M0.0%N/A0.462%
2/17/2026California State Teachers Retirement System47,172$920K0.0%+19.7%0.090%
2/17/2026Russell Investments Group Ltd.112,121$2.19M0.0%+0.8%0.213%
2/17/2026State of Wisconsin Investment Board16,141$315K0.0%N/A0.031%
2/17/2026Captrust Financial Advisors18,444$360K0.0%N/A0.035%
2/17/2026Royal Bank of Canada34,831$679K0.0%+7.5%0.066%
2/16/2026Squarepoint Ops LLC48,472$945K0.0%+368.1%0.092%
2/16/2026Verition Fund Management LLC24,375$475K0.0%+16.2%0.046%
2/16/2026Mariner LLC21,001$410K0.0%+28.2%0.040%
2/16/2026FJ Capital Management LLC1,829,665$35.68M4.0%-4.7%3.474%
2/16/2026Jacobs Asset Management LLC281,477$5.49M3.1%-41.1%0.534%
2/16/2026Kennedy Capital Management LLC1,267,042$24.71M0.5%+15.9%2.406%
2/16/2026Arax Advisory Partners1,309$26K0.0%-94.3%0.002%
2/16/2026Barclays PLC143,188$2.79M0.0%+22.8%0.272%
2/13/2026Parkside Financial Bank & Trust2,291$45K0.0%N/A0.004%
2/13/2026The Manufacturers Life Insurance Company 891,878$17.39M0.0%-2.7%1.693%
2/13/2026Rafferty Asset Management LLC43,049$839K0.0%+17.1%0.082%
2/13/2026First Trust Advisors LP20,911$408K0.0%-28.3%0.040%
2/13/2026Police & Firemen s Retirement System of New Jersey14,232$278K0.0%+18.7%0.027%
2/13/2026State Street Corp1,539,419$30.02M0.0%+12.6%2.923%
2/13/2026Ieq Capital LLC57,265$1.12M0.0%+7.5%0.109%
2/13/2026Boston Partners817,311$15.99M0.0%N/A1.552%
2/13/2026Martingale Asset Management L P110,468$2.15M0.1%-18.3%0.210%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC64,739$1.26M0.0%+24.4%0.123%
2/13/2026Wells Fargo & Company MN56,544$1.10M0.0%+46.2%0.107%
2/13/2026Davis Asset Management L.P.1,745,523$34.04M1.2%+16.4%3.314%
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2/13/2026Gator Capital Management LLC337,995$6.59M1.3%+0.8%0.642%
2/13/2026Quadrant Capital Group LLC2,523$49K0.0%+32.7%0.005%
2/12/2026DRW Securities LLC11,349$221K0.0%N/A0.022%
2/12/2026MetLife Investment Management LLC28,348$553K0.0%-4.1%0.054%
2/12/2026Banc Funds Co. LLC905,190$17.65M3.5%-10.1%1.719%
2/12/2026Renaissance Technologies LLC86,325$1.68M0.0%+75.7%0.164%
2/12/2026Dimensional Fund Advisors LP2,260,874$44.09M0.0%+2.5%4.293%
2/12/2026Sfam LLC5,827$114K0.1%N/A0.011%
2/12/2026New York State Common Retirement Fund14,366$280K0.0%+25.3%0.027%
2/12/2026Campbell & CO Investment Adviser LLC10,996$214K0.0%N/A0.021%


OSBC Institutional Ownership - Frequently Asked Questions

During the previous two years, 208 institutional investors and hedge funds held shares of Old Second Bancorp. The most heavily invested institutionals were BlackRock Inc. ($100.25M), Vanguard Group Inc. ($63.93M), Dimensional Fund Advisors LP ($48.16M), Davis Asset Management L.P. ($41.98M), FJ Capital Management LLC ($35.68M), State Street Corp ($30.02M), and Geode Capital Management LLC ($26.63M).Learn more on Old Second Bancorp's institutional investors.

67.76% of Old Second Bancorp's stock is owned by institutional investors. Learn more on OSBC's institutional investor holdings.

Of the 181 institutional investors that purchased Old Second Bancorp's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($4.30M), Davis Asset Management L.P. ($2.33M), River Street Advisors LLC ($1.06M), The Manufacturers Life Insurance Company ($879.99K), Wellington Management Group LLP ($841.80K), Boston Partners ($817.31K), and Vanguard Group Inc. ($817.02K).

Institutional investors have bought a total of 15,464,699 shares in the last 24 months. This purchase volume represents approximately $329.46M in transactions.

Of the 62 institutional investors that sold Old Second Bancorp's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Jacobs Asset Management LLC ($328.22K), Wellington Management Group LLP ($313.44K), Goldman Sachs Group Inc. ($295.48K), Banc Funds Co. LLC ($252.19K), JPMorgan Chase & Co. ($139.73K), FJ Capital Management LLC ($90.27K), and Bridgeway Capital Management LLC ($77.33K).

Institutional investors have sold a total of 2,422,127 shares in the last 24 months. This volume of shares sold represents approximately $47.29M in transactions.


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Institutional ownership data for NASDAQ:OSBC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/6/2026. New 13F filings are added each quarter as they're published.
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