OSBC Old Second Bancorp Inc.
Old Second Bancorp Inc. (OSBC) Institutional Ownership
What the institutions did with OSBC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 2.6M | 39.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 20.0% |
| CONGRESS ASSET MANAGEMENT CO | 411.2K | 6.3% |
| Bank of New York Mellon Corp | 350.2K | 5.4% |
| Forum Financial Management, LP | 237.4K | 3.6% |
| JCSD Capital, LLC | 148.2K | 2.3% |
| Russell Investments Group, Ltd. | 136.1K | 2.1% |
| PRINCIPAL FINANCIAL GROUP INC | 134.3K | 2.1% |
| GREAT LAKES ADVISORS, LLC | 126.9K | 1.9% |
| Squarepoint Ops LLC | 114.2K | 1.7% |
| BARCLAYS PLC | 87.8K | 1.3% |
| MSH Capital Advisors LLC | 84.8K | 1.3% |
| Fisher Asset Management, LLC | 83.2K | 1.3% |
| Sara-Bay Financial | 59.0K | 0.9% |
| BANK OF MONTREAL /CAN/ | 58.4K | 0.9% |
| Creative Planning | 57.8K | 0.9% |
| Knights of Columbus Asset Advisors LLC | 57.6K | 0.9% |
| DEUTSCHE BANK AG\ | 46.7K | 0.7% |
| State of New Jersey Common Pension Fund D | 46.5K | 0.7% |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 46.3K | 0.7% |
| CITIGROUP INC | 37.9K | 0.6% |
| Y-Intercept (Hong Kong) Ltd | 36.8K | 0.6% |
| HUDSON EDGE INVESTMENT PARTNERS INC. | 25.7K | 0.4% |
| Kestra Advisory Services, LLC | 24.3K | 0.4% |
| Lakewood Asset Management LLC | 24.2K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| River Street Advisors LLC | Sold Out | 779.0K | 0 | -779.0K |
| Thrivent Financial for Lutherans | Sold Out | 242.3K | 0 | -242.3K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.5M | 2.6M | +77.1K |
| GREAT LAKES ADVISORS, LLC | Reduced | 203.9K | 126.9K | -77.0K |
| JCSD Capital, LLC | Increased | 74.1K | 148.2K | +74.1K |
| CONGRESS ASSET MANAGEMENT CO | Increased | 338.7K | 411.2K | +72.6K |
| PRINCIPAL FINANCIAL GROUP INC | Increased | 80.5K | 134.3K | +53.7K |
| Squarepoint Ops LLC | Reduced | 167.9K | 114.2K | -53.7K |
| State of New Jersey Common Pension Fund D | Reduced | 89.0K | 46.5K | -42.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.3M | 1.3M | -42.3K |
| HUDSON EDGE INVESTMENT PARTNERS INC. | Reduced | 60.7K | 25.7K | -35.0K |
| Forum Financial Management, LP | Increased | 205.7K | 237.4K | +31.7K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | New | 0 | 24.1K | +24.1K |
| Integrated Advisors Network LLC | New | 0 | 22.6K | +22.6K |
| Y-Intercept (Hong Kong) Ltd | Increased | 16.7K | 36.8K | +20.0K |
| CITIGROUP INC | Reduced | 55.1K | 37.9K | -17.2K |
| Fisher Asset Management, LLC | Reduced | 97.3K | 83.2K | -14.1K |
| Kestra Advisory Services, LLC | Increased | 15.0K | 24.3K | +9.3K |
| Bank of New York Mellon Corp | Increased | 342.0K | 350.2K | +8.2K |
| Pictet Asset Management Holding SA | New | 0 | 8.2K | +8.2K |
| TSFG, LLC | Sold Out | 7.1K | 0 | -7.1K |
| BANK OF MONTREAL /CAN/ | Reduced | 64.3K | 58.4K | -5.9K |
| DEUTSCHE BANK AG\ | Reduced | 51.0K | 46.7K | -4.3K |
| Creative Planning | Increased | 53.8K | 57.8K | +3.9K |
| Savant Capital, LLC | Reduced | 20.2K | 16.6K | -3.7K |
| NISA INVESTMENT ADVISORS, LLC | Reduced | 5.5K | 2.3K | -3.2K |
| Sara-Bay Financial | Reduced | 61.0K | 59.0K | -2.0K |
| 4WEALTH ADVISORS, INC. | Reduced | 18.3K | 16.5K | -1.8K |
| Lakewood Asset Management LLC | Increased | 23.0K | 24.2K | +1.2K |
| Russell Investments Group, Ltd. | Increased | 135.0K | 136.1K | +1.1K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | Increased | 45.5K | 46.3K | +721 |
| Fortitude Family Office, LLC | Increased | 155 | 777 | +622 |
| Covestor Ltd | Reduced | 566 | 22 | -544 |
| SJS Investment Consulting Inc. | Increased | 5 | 495 | +490 |
| SFAM, LLC | Reduced | 992 | 540 | -452 |
| Farther Finance Advisors, LLC | Increased | 232 | 530 | +298 |
| PENSION & WEALTH MANAGEMENT ADVISORS, INC. | New | 0 | 295 | +295 |
| HOHIMER WEALTH MANAGEMENT, LLC | Increased | 11.0K | 11.2K | +264 |
| Knights of Columbus Asset Advisors LLC | Increased | 57.4K | 57.6K | +261 |
| HARBOR CAPITAL ADVISORS, INC. | New | 0 | 197 | +197 |
| BARCLAYS PLC | Increased | 87.6K | 87.8K | +193 |
| State of Alaska, Department of Revenue | Increased | 1.8K | 2.0K | +193 |
| US BANCORP \DE\ | Reduced | 1.0K | 809 | -193 |
| Root Financial Partners, LLC | New | 0 | 168 | +168 |
| PICTON MAHONEY ASSET MANAGEMENT | New | 0 | 120 | +120 |
| CHOREO, LLC | Increased | 9.1K | 9.2K | +98 |
| Sterling Capital Management LLC | Increased | 13.4K | 13.5K | +81 |
| Clark Wealth Partners | New | 0 | 64 | +64 |
| EverSource Wealth Advisors, LLC | Increased | 937 | 995 | +58 |
| ARIZONA STATE RETIREMENT SYSTEM | Reduced | 13.8K | 13.8K | -53 |
| Physician Wealth Advisors, Inc. | Increased | 15 | 64 | +49 |
| Centennial Wealth Advisory LLC | Increased | 17.6K | 17.6K | +42 |
| PNC Financial Services Group, Inc. | Reduced | 297 | 255 | -42 |
| Valued Wealth Advisors LLC | New | 0 | 31 | +31 |
| Caitong International Asset Management Co., Ltd | Sold Out | 24 | 0 | -24 |
| GAMMA Investing LLC | Increased | 650 | 668 | +18 |
| MassMutual Private Wealth & Trust, FSB | New | 0 | 13 | +13 |
| Parkside Financial Bank & Trust | Reduced | 4.5K | 4.5K | -9 |
| J.W. COLE ADVISORS, INC. | Increased | 10.5K | 10.5K | +5 |
| Clearstead Advisors, LLC | Increased | 211 | 215 | +4 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.