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 2025
Institutional positions in Old Second Bancorp Inc as of Sep 30, 2025. 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
- 197
- +16 vs. Q2 2025
- Shares held
- 36.1M
- +3.50M (+10.7%) vs. Q2 2025
- Total value
- $624.4M
- +$45.5M (+7.9%) vs. Q2 2025
- New holders
- 32
- 84 more added
- Sold out
- 16
- 50 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 184 | $903.3M |
| Q1 2026 | 188 | $761.2M |
| Q4 2025 | 185 | $723.9M |
| Q3 2025 | 197 | $624.4M |
| Q2 2025 | 183 | $579.1M |
| Q1 2025 | 192 | $546.2M |
| Q4 2024 | 180 | $573.9M |
| Q3 2024 | 175 | $495.0M |
| Q2 2024 | 153 | $457.4M |
| Q1 2024 | 151 | $415.0M |
| Q4 2023 | 160 | $470.4M |
| Q3 2023 | 145 | $406.8M |
| Q2 2023 | 134 | $385.5M |
| Q1 2023 | 155 | $415.0M |
| Q4 2022 | 145 | $471.2M |
| Q3 2022 | 133 | $384.5M |
| Q2 2022 | 135 | $395.2M |
| Q1 2022 | 136 | $403.8M |
| Q4 2021 | 129 | $281.7M |
| Q3 2021 | 113 | $266.1M |
| Q2 2021 | 115 | $253.5M |
| Q1 2021 | 101 | $271.1M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 32,243 | $558.0K | 0.00% | +4,900+17.9% | Added |
| Royal Bank of Canada | 32,413 | $560.0K | 0.00% | −17,163−34.6% | Reduced |
| Envestnet Asset Management Inc | 32,695 | $565.1K | 0.00% | −589−1.8% | Reduced |
| Gamco Investors, Inc. Et Al | 32,721 | $565.6K | 0.01% | +32,721 | New |
| 4WEALTH Advisors, Inc. | 33,558 | $580.0K | 0.54% | +33,558 | New |
| HSBC Holdings PLC | 34,063 | $585.2K | 0.00% | +2,314+7.3% | Added |
| Quantbot Technologies LP | 34,512 | $596.5K | 0.02% | +23,668+218.3% | Added |
| Principal Financial Group Inc | 34,962 | $604.3K | 0.00% | −4,608−11.6% | Reduced |
| Pinnacle Financial Group, LLC | 36,414 | $629.4K | 0.19% | +36,414 | New |
| Rafferty Asset Management, LLC | 36,771 | $635.6K | 0.00% | +3,995+12.2% | Added |
| Deutsche Bank AG | 37,834 | $654.1K | 0.00% | +6,741+21.7% | Added |
| Creative Planning | 38,306 | $662.1K | 0.00% | +4,618+13.7% | Added |
| Wells Fargo & Company | 38,670 | $668.4K | 0.00% | +10,727+38.4% | Added |
| Quest Partners LLC | 38,771 | $670.2K | 0.04% | −4,217−9.8% | Reduced |
| Citigroup Inc | 38,893 | $672.3K | 0.00% | −5,966−13.3% | Reduced |
| California State Teachers Retirement System | 39,417 | $681.3K | 0.00% | +20.0% | Added |
| Teacher Retirement System of Texas | 40,588 | $701.6K | 0.00% | −990−2.4% | Reduced |
| CI Private Wealth, LLC | 40,753 | $704.4K | 0.00% | +40,753 | New |
| Dynamic Technology Lab Private Ltd | 41,951 | $725.0K | 0.12% | +41,951 | New |
| Skylands Capital, LLC | 43,350 | $749.5K | 0.10% | +19,250+79.9% | Added |
| Two Sigma Advisers, LP | 44,500 | $769.2K | 0.00% | −32,800−42.4% | Reduced |
| HighTower Advisors, LLC | 44,728 | $773.1K | 0.00% | +422+1.0% | Added |
| UBS Group AG | 44,812 | $774.6K | 0.00% | +7,541+20.2% | Added |
| CenterBook Partners LP | 45,797 | $791.6K | 0.04% | +45,797 | New |
| Hunter Perkins Capital Management, LLC | 45,820 | $792.0K | 0.18% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 47,538 | $821.7K | 0.01% | −12,867−21.3% | Reduced |
| Legal & General Group Plc | 47,570 | $822.2K | 0.00% | +487+1.0% | Added |
| Point72 Asset Management, L.P. | 47,672 | $824.0K | 0.00% | +28,335+146.5% | Added |
| Bailard, Inc. | 47,750 | $825.4K | 0.02% | +9,600+25.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 48,615 | $838.6K | 0.00% | −10,157−17.3% | Reduced |
| Renaissance Technologies LLC | 49,125 | $849.1K | 0.00% | −33,600−40.6% | Reduced |
| UBS Asset Management Americas Inc | 52,022 | $899.2K | 0.00% | −75,919−59.3% | Reduced |
| Black Maple Capital Management LP | 52,500 | $907.5K | 0.66% | +5,000+10.5% | Added |
| Ieq Capital, LLC | 53,274 | $920.8K | 0.00% | +22,495+73.1% | Added |
| SEI Investments Co | 55,126 | $952.9K | 0.00% | +1,470+2.7% | Added |
| PMC FIG Opportunities LLC | 56,569 | $977.8K | 1.50% | +56,569 | New |
| State Board of Administration of Florida Retirement System | 58,816 | $1.02M | 0.00% | 00.0% | Unchanged |
| HGK Asset Management Inc | 61,653 | $1.07M | 0.17% | +979+1.6% | Added |
| JCSD Capital, LLC | 75,100 | $1.30M | 2.31% | +75,100 | New |
| Rhumbline Advisers | 75,349 | $1.30M | 0.00% | +4,256+6.0% | Added |
| Invesco Ltd. | 77,001 | $1.33M | 0.00% | +6,662+9.5% | Added |
| Citadel Advisors LLC | 77,588 | $1.34M | 0.00% | +25,833+49.9% | Added |
| Ameriprise Financial Inc | 79,032 | $1.37M | 0.00% | −27,095−25.5% | Reduced |
| Swiss National Bank | 81,700 | $1.41M | 0.00% | 00.0% | Unchanged |
| MSH Capital Advisors LLC | 84,826 | $1.47M | 0.39% | 00.0% | Unchanged |
| Brandywine Global Investment Management, LLC | 94,020 | $1.63M | 0.01% | −3,500−3.6% | Reduced |
| Sara-Bay Financial | 99,063 | $1.71M | 0.48% | +99,063 | New |
| Mendon Capital Advisors Corp | 100,000 | $1.73M | 0.79% | 00.0% | Unchanged |
| RMB Capital Management, LLC | 100,496 | $1.74M | 0.03% | 00.0% | Unchanged |
| Fisher Asset Management, LLC | 102,505 | $1.77M | 0.00% | −5,518−5.1% | Reduced |
| Russell Investments Group, Ltd. | 111,213 | $1.92M | 0.00% | +4,505+4.2% | Added |
| Barclays PLC | 116,579 | $2.02M | 0.00% | −16,898−12.7% | Reduced |
| State of New Jersey Common Pension Fund D | 120,925 | $2.09M | 0.01% | +6,915+6.1% | Added |
| Boothbay Fund Management, LLC | 125,249 | $2.16M | 0.06% | +125,249 | New |
| Martingale Asset Management L P | 135,240 | $2.34M | 0.06% | +3,248+2.5% | Added |
| Knights of Columbus Asset Advisors LLC | 136,442 | $2.36M | 0.14% | +4,487+3.4% | Added |
| Blair William & Co | 154,436 | $2.67M | 0.01% | +136,416+757.0% | Added |
| Wellington Management Group LLP | 156,108 | $2.70M | 0.00% | 00.0% | Unchanged |
| Elizabeth Park Capital Advisors, Ltd. | 158,657 | $2.74M | 2.22% | +7,358+4.9% | Added |
| Victory Capital Management Inc | 162,310 | $2.81M | 0.00% | +40,402+33.1% | Added |
| Siena Capital Partners GP, LLC | 163,038 | $2.82M | 0.81% | 00.0% | Unchanged |
| Great Lakes Advisors, LLC | 167,385 | $2.89M | 0.02% | −25,077−13.0% | Reduced |
| Thrivent Financial for Lutherans | 173,669 | $3.00M | 0.01% | −16,251−8.6% | Reduced |
| EJF Capital LLC | 173,834 | $3.00M | 1.75% | +30,548+21.3% | Added |
| Bank of Montreal | 179,350 | $3.10M | 0.00% | +179,350 | New |
| Two Sigma Investments, LP | 187,791 | $3.25M | 0.00% | +66,340+54.6% | Added |
| LSV Asset Management | 193,426 | $3.34M | 0.01% | −9,700−4.8% | Reduced |
| Empowered Funds, LLC | 198,548 | $3.43M | 0.03% | +20,423+11.5% | Added |
| Forum Financial Management, LP | 215,371 | $3.72M | 0.05% | −14,516−6.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 216,895 | $3.75M | 0.00% | +3,659+1.7% | Added |
| Qube Research & Technologies Ltd | 265,314 | $4.59M | 0.01% | −30,786−10.4% | Reduced |
| Morgan Stanley | 309,897 | $5.36M | 0.00% | −35,112−10.2% | Reduced |
| Gator Capital Management, LLC | 335,335 | $5.80M | 1.49% | +2,385+0.7% | Added |
| Bank of New York Mellon Corp | 340,877 | $5.89M | 0.00% | +11,441+3.5% | Added |
| Bank of America Corp | 354,401 | $6.13M | 0.00% | +155,952+78.6% | Added |
| River Street Advisors LLC | 383,949 | $6.64M | 2.57% | +383,949 | New |
| Nuveen, LLC | 414,668 | $7.17M | 0.00% | +31,620+8.3% | Added |
| Charles Schwab Investment Management Inc | 437,591 | $7.56M | 0.00% | +71,038+19.4% | Added |
| Jacobs Asset Management, LLC | 478,217 | $8.27M | 4.52% | +15,717+3.4% | Added |
| Bridgeway Capital Management, LLC | 504,951 | $8.73M | 0.19% | +20,423+4.2% | Added |
| AQR Capital Management LLC | 518,099 | $8.96M | 0.01% | −2,827−0.5% | Reduced |
| Alliancebernstein L.P. | 699,270 | $12.1M | 0.00% | −14,472−2.0% | Reduced |
| Stieven Capital Advisors, L.P. | 778,028 | $13.4M | 2.54% | +61,000+8.5% | Added |
| JPMorgan Chase & Co | 780,001 | $13.5M | 0.00% | −69,867−8.2% | Reduced |
| Manufacturers Life Insurance Company, The | 916,668 | $15.8M | 0.01% | −17,805−1.9% | Reduced |
| Northern Trust Corp | 997,898 | $17.2M | 0.00% | +583,491+140.8% | Added |
| Banc Funds Co LLC | 1,006,378 | $17.4M | 3.04% | −151,000−13.0% | Reduced |
| Kennedy Capital Management, Inc. | 1,093,318 | $18.9M | 0.42% | +96,326+9.7% | Added |
| Geode Capital Management, LLC | 1,363,185 | $23.6M | 0.00% | +211,814+18.4% | Added |
| State Street Corp | 1,367,478 | $23.6M | 0.00% | +61,936+4.7% | Added |
| American Century Companies Inc | 1,387,891 | $24.0M | 0.01% | +160,429+13.1% | Added |
| Davis Asset Management, L.P. | 1,500,000 | $25.9M | 0.92% | +115,498+8.3% | Added |
| Goldman Sachs Group Inc | 1,558,706 | $26.9M | 0.00% | +163,374+11.7% | Added |
| FJ Capital Management LLC | 1,919,934 | $33.2M | 3.57% | +82,601+4.5% | Added |
| Dimensional Fund Advisors LP | 2,204,884 | $38.1M | 0.01% | +86,416+4.1% | Added |
| Vanguard Group Inc | 3,269,993 | $56.5M | 0.00% | +553,169+20.4% | Added |
| BlackRock, Inc. | 3,817,778 | $66.0M | 0.00% | +316,180+9.0% | Added |
| Millennium Management LLC | 0 | $0 | 0.00% | −57,426−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −56,124−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −37,718−100.0% | Sold out |