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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, Q1 2021

Institutional positions in Old Second Bancorp Inc as of Mar 31, 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
101
No complete 13F data for Q4 2020
Shares held
20.5M
No complete 13F data for Q4 2020
Total value
$271.1M
No complete 13F data for Q4 2020

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 holdersQ1 2021: 101 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 heldQ1 2021: $271.1M
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, Q1 2021

Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding OSBC in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.2,336,031$30.9M0.00%––
Banc Funds Co LLC1,565,994$20.7M1.57%––
FJ Capital Management LLC1,551,200$20.5M1.71%––
Vanguard Group Inc1,418,644$18.7M0.00%––
Dimensional Fund Advisors LP1,035,553$13.7M0.00%––
Manufacturers Life Insurance Company, The1,027,416$13.6M0.01%––
FMR LLC879,316$11.6M0.00%––
Renaissance Technologies LLC861,125$11.4M0.01%––
Patriot Financial Partners GP, LP853,664$11.3M3.70%––
Wellington Management Group LLP853,020$11.3M0.00%––
Russell Investments Group, Ltd.785,154$10.4M0.02%––
Kennedy Capital Management, Inc.570,838$7.54M0.15%––
Victory Capital Management Inc540,872$7.14M0.01%––
State Street Corp537,861$7.11M0.00%––
Brandywine Global Investment Management, LLC537,348$7.10M0.05%––
Stieven Capital Advisors, L.P.490,071$6.47M0.81%––
Geode Capital Management, LLC454,845$6.01M0.00%––
Northern Trust Corp343,366$4.54M0.00%––
Wedge Capital Management L L P259,077$3.42M0.04%––
Knights of Columbus Asset Advisors LLC197,687$2.61M0.26%––
State of Wisconsin Investment Board177,747$2.35M0.01%––
Nuveen Asset Management, LLC167,745$2.22M0.00%––
Goldman Sachs Group Inc165,670$2.19M0.00%––
Boston Partners154,393$2.04M0.00%––
Mendon Capital Advisors Corp150,000$1.98M0.73%––
Alliancebernstein L.P.146,977$1.94M0.00%––
Bank of New York Mellon Corp138,855$1.83M0.00%––
JPMorgan Chase & Co134,211$1.77M0.00%––
Parametric Portfolio Associates LLC129,670$1.71M0.00%––
Bridgeway Capital Management, LLC127,050$1.68M0.03%––
Fairhaven Wealth Management, LLC112,500$1.49M0.62%––
Rothschild & Co Asset Management US Inc.104,971$1.39M0.02%––
Thrivent Financial for Lutherans96,069$1.27M0.00%––
Invesco Ltd.92,690$1.22M0.00%––
First Trust Advisors LP82,949$1.10M0.00%––
Comerica Bank79,696$1.03M0.01%––
Wells Fargo & Company76,764$1.01M0.00%––
Bank of Montreal76,408$997.0K0.00%––
Charles Schwab Investment Management Inc72,252$955.0K0.00%––
Prudential Financial Inc62,920$831.0K0.00%––
California Public Employees Retirement System59,500$786.0K0.00%––
Citadel Advisors LLC56,791$750.0K0.00%––
American Century Companies Inc52,972$700.0K0.00%––
Cornercap Investment Counsel Inc46,780$618.0K0.07%––
Rhumbline Advisers46,498$614.0K0.00%––
California State Teachers Retirement System42,874$566.0K0.00%––
Rothschild Investment Corp38,000$502.0K0.04%––
Mariner, LLC37,844$500.0K0.00%––
Bank of America Corp37,228$491.0K0.00%––
State Board of Administration of Florida Retirement System34,070$450.0K0.00%––
Two Sigma Advisers, LP33,800$446.0K0.00%––
LSV Asset Management33,264$439.0K0.00%––
Clear Perspective Advisors, LLC30,716$406.0K0.16%––
Federated Hermes, Inc.29,768$393.0K0.00%––
Shell Asset Management Co29,750$393.0K0.01%––
Winton Group Ltd29,173$385.0K0.02%––
Ancora Advisors, LLC28,454$376.0K0.01%––
Two Sigma Investments, LP24,149$319.0K0.00%––
Barclays PLC23,770$314.0K0.00%––
New York State Common Retirement Fund21,300$281.0K0.00%––
Morgan Stanley20,794$275.0K0.00%––
David Loasby20,210$267.0K0.04%––
Jacobs Levy Equity Management, Inc18,599$246.0K0.00%––
Deutsche Bank AG18,267$242.0K0.00%––
Royal Bank of Canada16,763$221.0K0.00%––
American International Group, Inc.16,571$219.0K0.00%––
Arrowstreet Capital, Limited Partnership15,883$210.0K0.00%––
Quadrature Capital Ltd15,460$204.0K0.01%––
Vigilant Capital Management, LLC15,000$198.0K0.02%––
Engineers Gate Manager LP14,536$192.0K0.01%––
Voya Investment Management LLC13,429$177.0K0.00%––
BNP Paribas Arbitrage, SA13,216$174.6K0.00%––
Campbell & CO Investment Adviser LLC12,982$171.0K0.11%––
MetLife Investment Management12,691$167.6K0.00%––
CIBC Private Wealth Group, LLC12,000$159.0K0.00%––
AE Wealth Management LLC11,144$147.0K0.00%––
Blair William & Co11,056$146.0K0.00%––
Martingale Asset Management L P10,500$139.0K0.00%––
Nisa Investment Advisors, LLC8,700$115.0K0.00%––
Metropolitan Life Insurance Co8,324$110.0K0.00%––
Manchester Capital Management LLC8,090$107.0K0.02%––
Geneos Wealth Management Inc.7,641$100.0K0.00%––
Public Employees Retirement System of Ohio5,684$75.0K0.00%––
UBS Group AG5,615$74.0K0.00%––
Ameritas Investment Partners, Inc.4,881$64.0K0.00%––
Citigroup Inc2,916$39.0K0.00%––
Legal & General Group Plc2,251$30.0K0.00%––
Panagora Asset Management Inc2,203$29.0K0.00%––
Stonebridge Capital Advisors LLC2,032$27.0K0.00%––
Tower Research Capital LLC (TRC)1,879$25.0K0.00%––
Advisor Group Holdings, Inc.1,600$22.0K0.00%––
Arlington Partners LLC1,446$19.0K0.01%––
Denali Advisors LLC1,250$17.0K0.01%––
Eaton Vance Management710$9.00K0.00%––
Captrust Financial Advisors718$9.00K0.00%––
Quadrant Capital Group LLC397$5.00K0.00%––
Total Clarity Wealth Management, Inc.300$4.00K0.00%––
The PNC Financial Services Group, Inc.230$3.00K0.00%––
CWM, LLC197$2.00K0.00%––
Parallel Advisors, LLC60$1.00K0.00%––