Old Second BancorpOSBC
13F holders, Q1 2025 (March 31)192holders +12
23new positions
9sold out
8famous investors
$16.64avg. 13F price*
At the end of Q1 2025, 192 institutions reported holding Old Second Bancorp Inc. (OSBC) in their 13F filings, up 12 from Q4 2024. 23 opened new positions and 9 sold out. The largest holders were BlackRock, Inc. ($59.6M), Vanguard Group Inc. ($45.1M) and Dimensional Fund Advisors LP ($34.8M). 8 famous investors held it, including Cliff Asness (0.0% of AQR Capital Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Old Second Bancorp Inc.
- CUSIP
- 680277100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 23 | $9.0M |
| Exits | 9 | $10.9M |
All 13F filers, Q4 2024 → Q1 2025: 3,228,443 shares bought and 2,634,941 shares sold, net +593,502 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 192 holders
| BlackRock, Inc. | 0.00% | Add +1.2% | 3,580,497 | $59.6M |
| Vanguard Group Inc. | 0.00% | Add +2.8% | 2,711,390 | $45.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +3.6% | 2,092,430 | $34.8M |
| FJ Capital Management LLC | 3.12% | Add +0.8% | 1,810,720 | $30.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +74.3% | 1,478,332 | $24.6M |
| State Street Corp. | 0.00% | Reduce -9.6% | 1,309,811 | $21.8M |
| Banc Funds Co. LLC | 2.82% | Reduce -20.5% | 1,284,578 | $21.4M |
| American Century Companies Inc. | 0.01% | Add +9.8% | 1,139,741 | $19.0M |
| Geode Capital Management, LLC | 0.00% | Add +8.9% | 1,126,806 | $18.8M |
| Davis Asset Management, L.P. | 0.76% | No change | 1,100,000 | $18.3M |
| Manufacturers Life Insurance Company, The | 0.02% | Add +0.8% | 954,275 | $15.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -11.0% | 951,890 | $15.8M |
| Alliancebernstein L.P. | 0.00% | Reduce -7.1% | 741,773 | $12.3M |
| Stieven Capital Advisors, L.P. | 2.31% | Add +74.3% | 716,228 | $11.9M |
| AQR Capital Management | 0.01% | Add +33.6% | 540,946 | $9.0M |
| Kennedy Capital Management LLC | 0.20% | Reduce -31.6% | 515,690 | $8.6M |
| Bridgeway Capital Management, LLC | 0.20% | Add +27.5% | 474,310 | $7.9M |
| Northern Trust Corp. | 0.00% | Reduce -6.5% | 418,186 | $7.0M |
| Jacobs Asset Management, LLC | 4.25% | Add +25.6% | 403,373 | $6.7M |
| Morgan Stanley | 0.00% | Reduce -8.3% | 362,602 | $6.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.6% | 357,036 | $5.9M |
| Nuveen, LLC | 0.00% | — | 336,126 | $5.6M |
| Gator Capital Management, LLC | 2.13% | No change | 334,250 | $5.6M |
| Bank of New York Mellon Corp | 0.00% | Reduce -7.2% | 333,057 | $5.5M |
| Qube Research & Technologies Ltd | 0.01% | Add +72.4% | 302,859 | $5.0M |
| River Street Advisors LLC | 2.41% | Add +54.7% | 292,611 | $4.9M |
| Millennium Management | 0.00% | Reduce -8.4% | 282,437 | $4.7M |
| Bank of America Corp. | 0.00% | Reduce -2.3% | 230,562 | $3.8M |
| Forum Financial Management, LP | 0.06% | Reduce -5.7% | 229,865 | $3.8M |
| Great Lakes Advisors, LLC | 0.03% | Add +74.3% | 197,992 | $3.3M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +15.3% | 194,788 | $3.2M |
| Elizabeth Park Capital Advisors, Ltd. | 2.86% | Add +34.7% | 189,750 | $3.2M |
| Wellington Management Group LLP | 0.00% | Reduce -45.7% | 182,837 | $3.0M |
| Assenagon Asset Management S.A. | 0.01% | Reduce -50.8% | 179,580 | $3.0M |
| LSV Asset Management | 0.01% | Add +445.2% | 169,449 | $2.8M |
| Empowered Funds, LLC | 0.04% | Add +38.8% | 167,907 | $2.8M |
| Siena Capital Partners GP, LLC | 0.81% | No change | 163,038 | $2.7M |
| Renaissance Technologies | 0.00% | Add +43.0% | 151,925 | $2.5M |
| Knights of Columbus Asset Advisors LLC | 0.15% | Reduce -17.2% | 134,484 | $2.2M |
| Thrivent Financial for Lutherans | 0.01% | Add +14.5% | 133,680 | $2.2M |
| Russell Investments Group, Ltd. | 0.00% | Add +0.0% | 126,427 | $2.1M |
| EJF Capital LP | 1.29% | Reduce -0.1% | 122,603 | $2.0M |
| Two Sigma Investments, LP | 0.00% | Reduce -20.8% | 117,462 | $2.0M |
| Wells Fargo & Company | 0.00% | Add +324.6% | 114,967 | $1.9M |
| Fisher Asset Management | 0.00% | No change | 108,023 | $1.8M |
| State of New Jersey Common Pension Fund D | 0.01% | Reduce -16.2% | 106,997 | $1.8M |
| Martingale Asset Management L P | 0.04% | New | 103,359 | $1.7M |
| Brandywine Global Investment Management, LLC | 0.01% | Reduce -3.7% | 101,620 | $1.7M |
| Mendon Capital Advisors Corp. | 0.77% | No change | 100,000 | $1.7M |
| Curi Capital, LLC | 0.04% | No change | 100,000 | $1.7M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Add +42.9% | 100,000 | $1.7M |
| Barclays PLC | 0.00% | Reduce -24.2% | 95,963 | $1.6M |
| Ameriprise Financial Inc. | 0.00% | Reduce -24.6% | 95,580 | $1.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +42.1% | 95,290 | $1.6M |
| Two Sigma Advisers, LP | 0.00% | Reduce -4.0% | 85,100 | $1.4M |
| MSH Capital Advisors LLC | 0.44% | No change | 84,826 | $1.4M |
| Swiss National Bank | 0.00% | No change | 83,200 | $1.4M |
| Jane Street Group, LLC | 0.00% | New | 82,817 | $1.4M |
| Invesco Ltd. | 0.00% | Reduce -3.7% | 75,029 | $1.2M |
| Trexquant Investment LP | 0.01% | Reduce -31.5% | 74,368 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | Add +174.2% | 70,275 | $1.2M |
| Rhumbline Advisers | 0.00% | Reduce -4.6% | 68,282 | $1.1M |
| Balyasny Asset Management L.P. | 0.00% | Add +41.0% | 64,496 | $1.1M |
| Hudson Edge Investment Partners Inc. | 0.20% | Add +40.4% | 59,834 | $996K |
| Citigroup Inc. | 0.00% | Reduce -13.6% | 59,717 | $994K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -4.7% | 58,864 | $979K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 58,816 | $979K |
| BNP Paribas Financial Markets | 0.00% | Add +11.7% | 53,907 | $897K |
| Hunter Perkins Capital Management, LLC | 0.20% | Reduce -5.4% | 52,100 | $867K |
| UBS Group AG | 0.00% | Reduce -3.2% | 49,737 | $828K |
| AlphaQuest LLC | 0.09% | Add +33.3% | 49,672 | $827K |
| Legal & General Group Plc | 0.00% | Reduce -4.3% | 49,391 | $822K |
| HighTower Advisors, LLC | 0.00% | Reduce -1.0% | 47,449 | $790K |
| ExodusPoint Capital Management, LP | 0.01% | New | 45,323 | $754K |
| SG Americas Securities, LLC | 0.00% | Add +31.1% | 44,275 | $737K |
| Black Maple Capital Management LP | 0.56% | Add +6.3% | 42,500 | $707K |
| Bailard, Inc. | 0.02% | New | 42,200 | $702K |
| Teacher Retirement System of Texas | 0.00% | Reduce -26.1% | 40,821 | $679K |
| Dynamic Technology Lab Private Ltd | 0.10% | New | 40,141 | $668K |
| California State Teachers Retirement System | 0.00% | No change | 39,923 | $664K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -12.4% | 39,389 | $655K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -28.5% | 37,828 | $629K |
| Deutsche Bank AG | 0.00% | Reduce -9.2% | 37,241 | $620K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -8.5% | 37,151 | $618K |
| Gsa Capital Partners LLP | 0.06% | Reduce -50.4% | 36,953 | $615K |
| Principal Financial Group Inc. | 0.00% | Add +3.1% | 36,434 | $606K |
| Creative Planning | 0.00% | Add +2.0% | 36,219 | $603K |
| Verition Fund Management LLC | 0.00% | Add +62.7% | 36,150 | $602K |
| Osaic Holdings, Inc. | 0.00% | Add +104.0% | 35,892 | $597K |
| PDT Partners, LLC | 0.04% | Reduce -34.7% | 35,336 | $588K |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 33,537 | $558K |
| Intech Investment Management LLC | 0.01% | Add +56.9% | 30,200 | $503K |
| Ieq Capital, LLC | 0.00% | Add +129.6% | 29,663 | $494K |
| Franklin Resources Inc. | 0.00% | New | 28,116 | $468K |
| Rothschild Investment LLC | 0.03% | Add +0.1% | 28,070 | $467K |
| First Trust Advisors LP | 0.00% | Reduce -0.4% | 27,185 | $452K |
| Envestnet Asset Management Inc. | 0.00% | Add +33.3% | 27,135 | $452K |
| Cubist Systematic Strategies, LLC | 0.01% | Reduce -45.7% | 26,514 | $441K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.3% | 25,864 | $430K |
| MetLife Investment Management, LLC | 0.00% | Reduce -2.0% | 25,502 | $424K |
"% of holder's portfolio" is OSBC's weight in each manager's 13F, not the share of Old Second Bancorp Inc. the manager owns.