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Old Second Bancorp Inc

OSBC
Exchange
Nasdaq
Industry
State Commercial Banks
SEC CIK
0000357173

In the last 90 days, Old Second Bancorp Inc insiders filed 0 open-market purchases and 7 sales; 184 institutions reported holding it in 13F filings for Q2 2026, worth $903.3M in total; no superinvestor holds it.

13F holders, Q3 2021

Institutional positions in Old Second Bancorp Inc as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
113
0 vs. Q2 2021
Shares held
20.4M
−67.1K (−0.3%) vs. Q2 2021
Total value
$266.1M
+$12.5M (+4.9%) vs. Q2 2021
New holders
16
40 more added
Sold out
16
40 more reduced

2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OSBC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2021: 113 institutions
Q1 2021: 101 institutionsQ2 2021: 115 institutionsQ3 2021: 113 institutionsQ4 2021: 129 institutionsQ1 2022: 136 institutionsQ2 2022: 135 institutionsQ3 2022: 133 institutionsQ4 2022: 145 institutionsQ1 2023: 155 institutionsQ2 2023: 134 institutionsQ3 2023: 145 institutionsQ4 2023: 160 institutionsQ1 2024: 151 institutionsQ2 2024: 153 institutionsQ3 2024: 175 institutionsQ4 2024: 180 institutionsQ1 2025: 192 institutionsQ2 2025: 183 institutionsQ3 2025: 197 institutionsQ4 2025: 185 institutionsQ1 2026: 188 institutionsQ2 2026: 184 institutions
Value heldQ3 2021: $266.1M
Q1 2021: $271.1MQ2 2021: $253.5MQ3 2021: $266.1MQ4 2021: $281.7MQ1 2022: $403.8MQ2 2022: $395.2MQ3 2022: $384.5MQ4 2022: $471.2MQ1 2023: $415.0MQ2 2023: $385.5MQ3 2023: $406.8MQ4 2023: $470.4MQ1 2024: $415.0MQ2 2024: $457.4MQ3 2024: $495.0MQ4 2024: $573.9MQ1 2025: $546.2MQ2 2025: $579.1MQ3 2025: $624.4MQ4 2025: $723.9MQ1 2026: $761.2MQ2 2026: $903.3M
Institutions holding OSBC and their total value by quarter
QuarterHoldersValue
Q2 2026184$903.3M
Q1 2026188$761.2M
Q4 2025185$723.9M
Q3 2025197$624.4M
Q2 2025183$579.1M
Q1 2025192$546.2M
Q4 2024180$573.9M
Q3 2024175$495.0M
Q2 2024153$457.4M
Q1 2024151$415.0M
Q4 2023160$470.4M
Q3 2023145$406.8M
Q2 2023134$385.5M
Q1 2023155$415.0M
Q4 2022145$471.2M
Q3 2022133$384.5M
Q2 2022135$395.2M
Q1 2022136$403.8M
Q4 2021129$281.7M
Q3 2021113$266.1M
Q2 2021115$253.5M
Q1 2021101$271.1M

Institutions, Q3 2021

Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q2 2021.

Institutions holding OSBC in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
FJ Capital Management LLC2,164,000$28.3M2.45%+613,000+39.5%Added
BlackRock Inc.2,016,159$26.3M0.00%−119,407−5.6%Reduced
Banc Funds Co LLC1,635,228$21.4M1.64%−32,451−1.9%Reduced
Vanguard Group Inc1,344,837$17.6M0.00%+76,864+6.1%Added
FMR LLC1,092,119$14.3M0.00%−31,816−2.8%Reduced
Manufacturers Life Insurance Company, The1,064,941$13.9M0.01%+3,048+0.3%Added
Dimensional Fund Advisors LP893,041$11.7M0.00%−110,137−11.0%Reduced
Renaissance Technologies LLC872,375$11.4M0.01%+24,550+2.9%Added
Patriot Financial Partners GP, LP853,664$11.1M2.96%+300,000+54.2%Added
Stieven Capital Advisors, L.P.768,963$10.0M1.21%+75,501+10.9%Added
Kennedy Capital Management, Inc.547,679$7.15M0.16%−18,972−3.3%Reduced
State Street Corp539,538$7.05M0.00%−6,025−1.1%Reduced
Brandywine Global Investment Management, LLC490,894$6.41M0.05%−5,600−1.1%Reduced
Geode Capital Management, LLC445,306$5.82M0.00%+617+0.1%Added
Victory Capital Management Inc432,030$5.64M0.01%−314,288−42.1%Reduced
Russell Investments Group, Ltd.423,417$5.53M0.01%+1,321+0.3%Added
Northern Trust Corp327,604$4.28M0.00%+4,648+1.4%Added
Wellington Management Group LLP258,300$3.37M0.00%−349,100−57.5%Reduced
Knights of Columbus Asset Advisors LLC200,434$2.62M0.23%+750+0.4%Added
Mendon Capital Advisors Corp200,000$2.61M0.89%+50,000+33.3%Added
Two Sigma Advisers, LP199,100$2.60M0.01%+88,700+80.3%Added
Two Sigma Investments, LP194,553$2.54M0.01%+95,835+97.1%Added
Wedge Capital Management L L P186,392$2.43M0.03%−10,233−5.2%Reduced
State of Wisconsin Investment Board177,747$2.32M0.00%00.0%Unchanged
Alliancebernstein L.P.156,891$2.05M0.00%+13,014+9.0%Added
Nuveen Asset Management, LLC152,957$1.88M0.00%−3,728−2.4%Reduced
Bank of New York Mellon Corp139,450$1.82M0.00%+5,422+4.0%Added
Parametric Portfolio Associates LLC127,428$1.66M0.00%−12,117−8.7%Reduced
Bridgeway Capital Management, LLC127,050$1.66M0.03%00.0%Unchanged
Fairhaven Wealth Management, LLC112,500$1.47M0.61%00.0%Unchanged
Arrowstreet Capital, Limited Partnership104,375$1.36M0.00%+19,477+22.9%Added
Invesco Ltd.100,900$1.32M0.00%+3,873+4.0%Added
Rothschild & Co Asset Management US Inc.98,942$1.29M0.02%−1,780−1.8%Reduced
Thrivent Financial for Lutherans85,785$1.12M0.00%−10,284−10.7%Reduced
Jacobs Levy Equity Management, Inc85,770$1.12M0.01%+36,703+74.8%Added
Wells Fargo & Company83,084$1.09M0.00%+13,924+20.1%Added
American Century Companies Inc82,123$1.07M0.00%+11,047+15.5%Added
Morgan Stanley78,796$1.03M0.00%−23,922−23.3%Reduced
Boston Partners74,580$974.0K0.00%−11,726−13.6%Reduced
Charles Schwab Investment Management Inc69,591$909.0K0.00%−24,730−26.2%Reduced
Goldman Sachs Group Inc65,612$857.0K0.00%−20,744−24.0%Reduced
JPMorgan Chase & Co64,171$838.0K0.00%−24,293−27.5%Reduced
Comerica Bank52,098$716.0K0.00%−2,511−4.6%Reduced
Millennium Management LLC51,986$679.0K0.00%−35,042−40.3%Reduced
LSV Asset Management48,200$629.0K0.00%+14,936+44.9%Added
Barclays PLC48,028$627.0K0.00%+15,700+48.6%Added
Cornercap Investment Counsel Inc46,780$611.0K0.07%00.0%Unchanged
HGK Asset Management Inc43,880$573.0K0.19%+8,601+24.4%Added
rhino investment partners, Inc43,000$562.0K0.28%+43,000New
Bank of America Corp42,984$561.0K0.00%−4,794−10.0%Reduced
Rhumbline Advisers40,550$530.0K0.00%+802+2.0%Added
Prudential Financial Inc40,028$522.0K0.00%−12,652−24.0%Reduced
Mesirow Financial Investment Management, Inc.38,075$497.0K1.46%+38,075New
Mariner, LLC38,015$496.0K0.00%+171+0.5%Added
State Board of Administration of Florida Retirement System34,070$445.0K0.00%00.0%Unchanged
Rothschild Investment Corp33,000$431.0K0.04%−5,000−13.2%Reduced
Federated Hermes, Inc.30,192$394.0K0.00%−249−0.8%Reduced
AQR Capital Management LLC30,156$394.0K0.00%+30,156New
Clear Perspective Advisors, LLC29,064$380.0K0.13%−1,124−3.7%Reduced
Ancora Advisors, LLC28,454$372.0K0.01%00.0%Unchanged
STRS Ohio25,800$336.0K0.00%00.0%Unchanged
Winton Group Ltd23,555$308.0K0.02%−3,928−14.3%Reduced
David Loasby20,210$264.0K0.03%00.0%Unchanged
Connor, Clark & Lunn Investment Management Ltd.18,814$246.0K0.00%−6,965−27.0%Reduced
Royal Bank of Canada18,859$246.0K0.00%+2,076+12.4%Added
Jump Financial, LLC18,700$244.0K0.02%+7,100+61.2%Added
Citadel Advisors LLC18,330$240.0K0.00%−14,149−43.6%Reduced
New York State Common Retirement Fund18,223$238.0K0.00%−3,312−15.4%Reduced
SG Americas Securities, LLC18,020$235.0K0.00%+18,020New
Shell Asset Management Co17,860$233.0K0.01%−770−4.1%Reduced
Deutsche Bank AG16,415$215.0K0.00%−3,818−18.9%Reduced
Cubist Systematic Strategies, LLC15,945$208.0K0.00%−2,012−11.2%Reduced
California State Teachers Retirement System15,562$203.0K0.00%−22,819−59.5%Reduced
American International Group, Inc.15,191$198.0K0.00%−361−2.3%Reduced
Vigilant Capital Management, LLC15,000$196.0K0.02%00.0%Unchanged
Raymond James & Associates13,716$179.0K0.00%+13,716New
Voya Investment Management LLC13,429$175.0K0.00%00.0%Unchanged
HSBC Holdings PLC13,014$170.0K0.00%00.0%Unchanged
BHZ Capital Management, LP12,645$165.0K0.06%+12,645New
First Trust Advisors LP12,413$162.0K0.00%−68,125−84.6%Reduced
Public Employees Retirement System of Ohio11,231$147.0K0.00%+1,047+10.3%Added
AE Wealth Management LLC11,214$146.0K0.00%+39+0.3%Added
Centennial Wealth Advisory LLC11,214$146.0K0.09%+11,214New
Balyasny Asset Management LLC11,067$145.0K0.00%+11,067New
Blair William & Co11,061$144.0K0.00%+30.0%Added
D. E. Shaw & Co., Inc.10,779$141.0K0.00%+10,779New
Alpha Paradigm Partners, LLC10,759$141.0K0.06%+10,759New
ExodusPoint Capital Management, LP10,742$140.0K0.00%−33,084−75.5%Reduced
Marshall Wace, LLP10,097$132.0K0.00%+10,097New
HRT Financial LP10,098$131.0K0.00%+10,098New
MetLife Investment Management9,998$130.6K0.00%+6,409+178.6%Added
Nisa Investment Advisors, LLC8,700$114.0K0.00%00.0%Unchanged
Geneos Wealth Management Inc.7,702$101.0K0.00%+34+0.4%Added
Metropolitan Life Insurance Co7,565$98.8K0.00%+3,572+89.5%Added
BNP Paribas Arbitrage, SA7,510$98.1K0.00%+3,997+113.8%Added
Manchester Capital Management LLC5,720$75.0K0.01%00.0%Unchanged
Citigroup Inc4,695$61.0K0.00%+2,228+90.3%Added
Ameritas Investment Partners, Inc.3,098$40.0K0.00%−992−24.3%Reduced
Berman Capital Advisors, LLC3,022$39.0K0.01%+924+44.0%Added
Legal & General Group Plc2,251$29.0K0.00%00.0%Unchanged