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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, Q2 2021

Institutional positions in Old Second Bancorp Inc as of Jun 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
115
+14 vs. Q1 2021
Shares held
20.4M
−75.9K (−0.4%) vs. Q1 2021
Total value
$253.5M
−$17.5M (−6.5%) vs. Q1 2021
New holders
21
30 more added
Sold out
7
41 more reduced

Compare with Q1 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 holdersQ2 2021: 115 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 heldQ2 2021: $253.5M
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, Q2 2021

Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q1 2021.

Institutions holding OSBC in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.2,135,566$26.5M0.00%−200,465−8.6%Reduced
Banc Funds Co LLC1,667,679$20.7M1.52%+101,685+6.5%Added
FJ Capital Management LLC1,551,000$19.2M1.61%−2000.0%Reduced
Vanguard Group Inc1,267,973$15.7M0.00%−150,671−10.6%Reduced
FMR LLC1,123,935$13.9M0.00%+244,619+27.8%Added
Manufacturers Life Insurance Company, The1,061,893$13.2M0.01%+34,477+3.4%Added
Dimensional Fund Advisors LP1,003,178$12.4M0.00%−32,375−3.1%Reduced
Renaissance Technologies LLC847,825$10.5M0.01%−13,300−1.5%Reduced
Victory Capital Management Inc746,318$9.25M0.01%+205,446+38.0%Added
Stieven Capital Advisors, L.P.693,462$8.60M1.06%+203,391+41.5%Added
Wellington Management Group LLP607,400$7.53M0.00%−245,620−28.8%Reduced
Kennedy Capital Management, Inc.566,651$7.03M0.15%−4,187−0.7%Reduced
Patriot Financial Partners GP, LP553,664$6.87M2.34%−300,000−35.1%Reduced
State Street Corp545,563$6.76M0.00%+7,702+1.4%Added
Brandywine Global Investment Management, LLC496,494$6.16M0.05%−40,854−7.6%Reduced
Geode Capital Management, LLC444,689$5.51M0.00%−10,156−2.2%Reduced
Russell Investments Group, Ltd.422,096$5.23M0.01%−363,058−46.2%Reduced
Northern Trust Corp322,956$4.00M0.00%−20,410−5.9%Reduced
Knights of Columbus Asset Advisors LLC199,684$2.48M0.23%+1,997+1.0%Added
Wedge Capital Management L L P196,625$2.44M0.03%−62,452−24.1%Reduced
State of Wisconsin Investment Board177,747$2.20M0.00%00.0%Unchanged
Nuveen Asset Management, LLC156,685$1.94M0.00%−11,060−6.6%Reduced
Mendon Capital Advisors Corp150,000$1.86M0.67%00.0%Unchanged
Alliancebernstein L.P.143,877$1.78M0.00%−3,100−2.1%Reduced
Parametric Portfolio Associates LLC139,545$1.73M0.00%+9,875+7.6%Added
Bank of New York Mellon Corp134,028$1.66M0.00%−4,827−3.5%Reduced
Stifel Financial Corp129,100$1.60M0.00%+129,100New
Bridgeway Capital Management, LLC127,050$1.57M0.03%00.0%Unchanged
Fairhaven Wealth Management, LLC112,500$1.40M0.56%00.0%Unchanged
Two Sigma Advisers, LP110,400$1.37M0.00%+76,600+226.6%Added
Bank of Montreal102,418$1.31M0.00%+26,010+34.0%Added
Morgan Stanley102,718$1.27M0.00%+81,924+394.0%Added
Rothschild & Co Asset Management US Inc.100,722$1.25M0.01%−4,249−4.0%Reduced
Two Sigma Investments, LP98,718$1.22M0.00%+74,569+308.8%Added
Invesco Ltd.97,027$1.20M0.00%+4,337+4.7%Added
Thrivent Financial for Lutherans96,069$1.19M0.00%00.0%Unchanged
Charles Schwab Investment Management Inc94,321$1.17M0.00%+22,069+30.5%Added
JPMorgan Chase & Co88,464$1.10M0.00%−45,747−34.1%Reduced
Millennium Management LLC87,028$1.08M0.00%+87,028New
Goldman Sachs Group Inc86,356$1.07M0.00%−79,314−47.9%Reduced
Boston Partners86,306$1.07M0.00%−68,087−44.1%Reduced
Arrowstreet Capital, Limited Partnership84,898$1.05M0.00%+69,015+434.5%Added
First Trust Advisors LP80,538$999.0K0.00%−2,411−2.9%Reduced
American Century Companies Inc71,076$881.0K0.00%+18,104+34.2%Added
Wells Fargo & Company69,160$858.0K0.00%−7,604−9.9%Reduced
Prudential Financial Inc52,680$653.0K0.00%−10,240−16.3%Reduced
Comerica Bank54,609$644.0K0.00%−25,087−31.5%Reduced
Jacobs Levy Equity Management, Inc49,067$608.0K0.00%+30,468+163.8%Added
Bank of America Corp47,778$593.0K0.00%+10,550+28.3%Added
Cornercap Investment Counsel Inc46,780$580.0K0.06%00.0%Unchanged
ExodusPoint Capital Management, LP43,826$543.0K0.01%+43,826New
Acadian Asset Management LLC40,905$507.0K0.00%+40,905New
Rhumbline Advisers39,748$493.0K0.00%−6,750−14.5%Reduced
California State Teachers Retirement System38,381$476.0K0.00%−4,493−10.5%Reduced
Rothschild Investment Corp38,000$471.0K0.04%00.0%Unchanged
Mariner, LLC37,844$469.0K0.00%00.0%Unchanged
HGK Asset Management Inc35,279$437.0K0.14%+35,279New
State Board of Administration of Florida Retirement System34,070$422.0K0.00%00.0%Unchanged
LSV Asset Management33,264$412.0K0.00%00.0%Unchanged
Citadel Advisors LLC32,479$403.0K0.00%−24,312−42.8%Reduced
Barclays PLC32,328$402.0K0.00%+8,558+36.0%Added
Federated Hermes, Inc.30,441$377.0K0.00%+673+2.3%Added
Clear Perspective Advisors, LLC30,188$374.0K0.13%−528−1.7%Reduced
Ancora Advisors, LLC28,454$353.0K0.01%00.0%Unchanged
Jane Street Group, LLC28,038$348.0K0.00%+28,038New
Winton Group Ltd27,483$341.0K0.02%−1,690−5.8%Reduced
Assenagon Asset Management S.A.26,345$327.0K0.00%+26,345New
Connor, Clark & Lunn Investment Management Ltd.25,779$320.0K0.00%+25,779New
STRS Ohio25,800$319.0K0.00%+25,800New
Susquehanna International Group, LLP22,696$281.0K0.00%+22,696New
New York State Common Retirement Fund21,535$267.0K0.00%+235+1.1%Added
David Loasby20,210$251.0K0.03%00.0%Unchanged
Deutsche Bank AG20,233$251.0K0.00%+1,966+10.8%Added
Shell Asset Management Co18,630$231.0K0.00%−11,120−37.4%Reduced
Campbell & CO Investment Adviser LLC18,582$230.0K0.10%+5,600+43.1%Added
Cubist Systematic Strategies, LLC17,957$223.0K0.00%+17,957New
Royal Bank of Canada16,783$208.0K0.00%+20+0.1%Added
Trexquant Investment LP16,371$203.0K0.02%+16,371New
American International Group, Inc.15,552$193.0K0.00%−1,019−6.1%Reduced
Vigilant Capital Management, LLC15,000$186.0K0.02%00.0%Unchanged
California Public Employees Retirement System14,537$180.0K0.00%−44,963−75.6%Reduced
Voya Investment Management LLC13,429$167.0K0.00%00.0%Unchanged
Squarepoint Ops LLC13,315$165.0K0.00%+13,315New
HSBC Holdings PLC13,014$162.0K0.00%+13,014New
Susquehanna Fundamental Investments, LLC12,881$160.0K0.00%+12,881New
Jump Financial, LLC11,600$144.0K0.01%+11,600New
AE Wealth Management LLC11,175$139.0K0.00%+31+0.3%Added
Blair William & Co11,058$137.0K0.00%+20.0%Added
Martingale Asset Management L P10,500$131.0K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio10,184$126.0K0.00%+4,500+79.2%Added
Nisa Investment Advisors, LLC8,700$108.0K0.00%00.0%Unchanged
Geneos Wealth Management Inc.7,668$95.0K0.00%+27+0.4%Added
Manchester Capital Management LLC5,720$71.0K0.01%−2,370−29.3%Reduced
Ameritas Investment Partners, Inc.4,090$50.0K0.00%−791−16.2%Reduced
Metropolitan Life Insurance Co3,993$49.5K0.00%−4,331−52.0%Reduced
Hillsdale Investment Management Inc.3,800$47.0K0.00%+3,800New
MetLife Investment Management3,589$44.5K0.00%−9,102−71.7%Reduced
BNP Paribas Arbitrage, SA3,513$43.6K0.00%−9,703−73.4%Reduced
Citigroup Inc2,467$31.0K0.00%−449−15.4%Reduced
Legal & General Group Plc2,251$28.0K0.00%00.0%Unchanged