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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 2024

Institutional positions in Old Second Bancorp Inc as of Sep 30, 2024. 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
175
+23 vs. Q2 2024
Shares held
31.8M
+4.31M (+15.7%) vs. Q2 2024
Total value
$495.0M
+$88.6M (+21.8%) vs. Q2 2024
New holders
34
66 more added
Sold out
11
49 more reduced

1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 2024: 175 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 2024: $495.0M
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 2024

Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q2 2024.

Institutions holding OSBC in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.3,680,119$57.4M0.00%+3,680,119New
Vanguard Group Inc2,455,935$38.3M0.00%+114,015+4.9%Added
Dimensional Fund Advisors LP1,884,978$29.4M0.01%+184,168+10.8%Added
FJ Capital Management LLC1,870,988$29.2M3.06%+129,807+7.5%Added
Banc Funds Co LLC1,754,288$27.3M2.97%−221,400−11.2%Reduced
State Street Corp1,264,359$19.7M0.00%+77,143+6.5%Added
Forum Financial Management, LP1,234,213$19.2M0.32%−1,464,782−54.3%Reduced
JPMorgan Chase & Co1,101,634$17.2M0.00%+153,187+16.2%Added
Davis Asset Management, L.P.1,098,369$17.1M0.69%+516,101+88.6%Added
Geode Capital Management, LLC1,029,485$16.1M0.00%+22,747+2.3%Added
Manufacturers Life Insurance Company, The963,161$15.0M0.01%−27,971−2.8%Reduced
American Century Companies Inc939,878$14.7M0.01%+139,691+17.5%Added
Goldman Sachs Group Inc838,219$13.1M0.00%+336,241+67.0%Added
Alliancebernstein L.P.798,112$12.4M0.00%−57,500−6.7%Reduced
Kennedy Capital Management, Inc.768,502$12.0M0.26%+314,927+69.4%Added
Northern Trust Corp462,912$7.22M0.00%−150,833−24.6%Reduced
Assenagon Asset Management S.A.443,527$6.91M0.01%+285,314+180.3%Added
Stieven Capital Advisors, L.P.385,408$6.01M1.14%−141,077−26.8%Reduced
Morgan Stanley364,753$5.69M0.00%+120,061+49.1%Added
Bank of New York Mellon Corp361,844$5.64M0.00%+131,764+57.3%Added
Charles Schwab Investment Management Inc358,346$5.59M0.00%+25,570+7.7%Added
Gator Capital Management, LLC334,700$5.22M2.31%00.0%Unchanged
Wellington Management Group LLP322,537$5.03M0.00%−71,663−18.2%Reduced
AQR Capital Management LLC319,446$4.98M0.01%+11,451+3.7%Added
Jacobs Asset Management, LLC312,500$4.87M3.22%−12,500−3.8%Reduced
Aptus Capital Advisors, LLC286,887$4.47M0.07%+38,804+15.6%Added
Bridgeway Capital Management, LLC247,784$3.86M0.08%+5,762+2.4%Added
Ameriprise Financial Inc177,030$2.76M0.00%+128,581+265.4%Added
Qube Research & Technologies Ltd175,187$2.73M0.01%+131,633+302.2%Added
Two Sigma Investments, LP167,186$2.61M0.01%+46,632+38.7%Added
Bank of America Corp163,664$2.55M0.00%+24,930+18.0%Added
Siena Capital Partners GP, LLC163,038$2.54M0.73%00.0%Unchanged
Knights of Columbus Asset Advisors LLC162,032$2.53M0.17%−71,871−30.7%Reduced
Renaissance Technologies LLC154,625$2.41M0.00%−67,900−30.5%Reduced
Elizabeth Park Capital Advisors, Ltd.140,894$2.20M1.77%+140,894New
State of New Jersey Common Pension Fund D133,036$2.07M0.01%00.0%Unchanged
Arrowstreet Capital, Limited Partnership128,392$2.00M0.00%+87,479+213.8%Added
Russell Investments Group, Ltd.126,470$1.97M0.00%+570.0%Added
Gsa Capital Partners LLP125,831$1.96M0.15%+125,831New
EJF Capital LLC120,302$1.88M1.25%−97,569−44.8%Reduced
Barclays PLC116,582$1.82M0.00%+52,277+81.3%Added
Empowered Funds, LLC115,181$1.80M0.03%+5,762+5.3%Added
Great Lakes Advisors, LLC113,593$1.77M0.01%−82,471−42.1%Reduced
Brandywine Global Investment Management, LLC110,534$1.72M0.01%−3,300−2.9%Reduced
Fisher Asset Management, LLC108,023$1.68M0.00%00.0%Unchanged
Two Sigma Advisers, LP104,100$1.62M0.00%−36,500−26.0%Reduced
Mendon Capital Advisors Corp100,000$1.56M1.06%−50,000−33.3%Reduced
RMB Capital Management, LLC100,000$1.56M0.04%−50,000−33.3%Reduced
Nuveen Asset Management, LLC97,703$1.52M0.00%00.0%Unchanged
Trexquant Investment LP93,188$1.45M0.02%+93,188New
Thrivent Financial for Lutherans88,300$1.38M0.00%+63+0.1%Added
Fairhaven Wealth Management, LLC87,900$1.37M0.42%−6,600−7.0%Reduced
MSH Capital Advisors LLC84,826$1.32M0.40%00.0%Unchanged
Swiss National Bank83,200$1.30M0.00%−4,800−5.5%Reduced
UBS Asset Management Americas Inc78,868$1.23M0.00%−9,828−11.1%Reduced
Invesco Ltd.76,549$1.19M0.00%−33,561−30.5%Reduced
Susquehanna International Group, LLP73,747$1.15M0.00%+60,059+438.8%Added
Rhumbline Advisers69,446$1.08M0.00%−3,709−5.1%Reduced
State Board of Administration of Florida Retirement System65,914$1.03M0.00%+53,524+432.0%Added
Campbell & CO Investment Adviser LLC64,264$1.00M0.07%−8,998−12.3%Reduced
Y-Intercept (Hong Kong) Ltd62,465$973.8K0.06%+62,465New
Jane Street Group, LLC62,398$972.8K0.00%+12,785+25.8%Added
Citigroup Inc61,496$958.7K0.00%+6,294+11.4%Added
Wealth Enhancement Advisory Services, LLC56,344$878.4K0.00%+227+0.4%Added
Millennium Management LLC55,793$869.8K0.00%−52,309−48.4%Reduced
Los Angeles Capital Management LLC54,259$845.9K0.00%−6,500−10.7%Reduced
Rafferty Asset Management, LLC53,720$837.5K0.00%−2,724−4.8%Reduced
Hunter Perkins Capital Management, LLC52,955$826.0K0.17%+1,870+3.7%Added
Legal & General Group Plc49,745$775.5K0.00%+271+0.5%Added
HighTower Advisors, LLC47,949$750.0K0.00%−4,148−8.0%Reduced
Black Maple Capital Management LP46,436$723.9K0.55%−4,000−7.9%Reduced
Teacher Retirement System of Texas45,999$717.0K0.00%00.0%Unchanged
Graham Capital Wealth Management, LLC44,110$687.7K0.70%−2,909−6.2%Reduced
California State Teachers Retirement System40,354$629.1K0.00%−3,254−7.5%Reduced
Quest Partners LLC38,315$597.3K0.05%+24,279+173.0%Added
UBS Group AG37,429$583.5K0.00%+9,338+33.2%Added
Janus Henderson Group PLC37,237$580.8K0.00%−1,202−3.1%Reduced
Semanteon Capital Management, LP36,880$575.0K0.39%+14,805+67.1%Added
HGK Asset Management Inc36,362$566.9K0.11%+16,565+83.7%Added
D. E. Shaw & Co., Inc.35,117$547.5K0.00%−62,795−64.1%Reduced
BNP Paribas Arbitrage, SA32,967$514.0K0.00%+24,084+271.1%Added
Principal Financial Group Inc32,243$502.7K0.00%+3,313+11.5%Added
Jump Financial, LLC32,198$502.0K0.01%+32,198New
Cubist Systematic Strategies, LLC32,067$499.9K0.01%+32,067New
Creative Planning30,107$469.4K0.00%+510+1.7%Added
Rothschild Investment LLC28,080$437.8K0.03%+60+0.2%Added
First Trust Advisors LP27,133$423.0K0.00%−101,983−79.0%Reduced
Deutsche Bank AG26,892$419.2K0.00%+6,207+30.0%Added
SG Americas Securities, LLC26,690$416.0K0.00%+9,168+52.3%Added
Raymond James & Associates26,062$406.3K0.00%−5,539−17.5%Reduced
Royal Bank of Canada24,884$388.0K0.00%−386−1.5%Reduced
Prudential Financial Inc24,300$378.8K0.00%+24,300New
Mirae Asset Global ETFs Holdings Ltd.23,954$373.4K0.00%+1,176+5.2%Added
MetLife Investment Management23,940$373.2K0.00%−1,566−6.1%Reduced
Corebridge Financial, Inc.23,299$363.2K0.00%−143−0.6%Reduced
Advisor Group Holdings, Inc.22,823$355.8K0.00%−1,410−5.8%Reduced
Wells Fargo & Company21,505$335.3K0.00%+572+2.7%Added
Alps Advisors Inc21,390$333.5K0.00%−3,856−15.3%Reduced
Magnetar Financial LLC21,365$333.1K0.01%+21,365New
Squarepoint Ops LLC21,340$332.7K0.00%+21,340New