Old Second BancorpOSBC
13F holders, Q2 2025 (June 30)183holders −9
14new positions
24sold out
7famous investors
$17.74avg. 13F price*
At the end of Q2 2025, 183 institutions reported holding Old Second Bancorp Inc. (OSBC) in their 13F filings, down 9 from Q1 2025. 14 opened new positions and 24 sold out. The largest holders were BlackRock, Inc. ($62.1M), Vanguard Group Inc. ($48.2M) and Dimensional Fund Advisors LP ($37.6M). 7 famous investors held it, including Cliff Asness (0.0% of AQR Capital Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Old Second Bancorp Inc.
- CUSIP
- 680277100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $5.5M |
| Exits | 24 | $11.3M |
All 13F filers, Q1 2025 → Q2 2025: 2,024,486 shares bought and 2,217,327 shares sold, net −192,841 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 183 holders
| BlackRock, Inc. | 0.00% | Reduce -2.2% | 3,501,598 | $62.1M |
| Vanguard Group Inc. | 0.00% | Add +0.2% | 2,716,824 | $48.2M |
| Dimensional Fund Advisors LP | 0.01% | Add +1.2% | 2,118,468 | $37.6M |
| FJ Capital Management LLC | 3.46% | Add +1.5% | 1,837,333 | $32.6M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -5.6% | 1,395,332 | $24.8M |
| Davis Asset Management, L.P. | 0.96% | Add +25.9% | 1,384,502 | $24.6M |
| State Street Corp. | 0.00% | Reduce -0.3% | 1,305,542 | $23.2M |
| American Century Companies Inc. | 0.01% | Add +7.7% | 1,227,462 | $21.8M |
| Banc Funds Co. LLC | 3.10% | Reduce -9.9% | 1,157,378 | $20.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.2% | 1,151,371 | $20.4M |
| Kennedy Capital Management LLC | 0.42% | Add +93.3% | 996,992 | $17.7M |
| Manufacturers Life Insurance Company, The | 0.01% | Reduce -2.1% | 934,473 | $16.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.7% | 849,868 | $15.1M |
| Stieven Capital Advisors, L.P. | 2.48% | Add +0.1% | 717,028 | $12.7M |
| Alliancebernstein L.P. | 0.00% | Reduce -3.8% | 713,742 | $12.7M |
| AQR Capital Management | 0.01% | Reduce -3.7% | 520,926 | $9.2M |
| Bridgeway Capital Management, LLC | 0.20% | Add +2.1% | 484,528 | $8.6M |
| Jacobs Asset Management, LLC | 4.68% | Add +14.7% | 462,500 | $8.2M |
| Northern Trust Corp. | 0.00% | Reduce -0.9% | 414,407 | $7.4M |
| Nuveen, LLC | 0.00% | Add +14.0% | 383,048 | $6.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.7% | 366,553 | $6.5M |
| Morgan Stanley | 0.00% | Reduce -4.8% | 345,009 | $6.1M |
| Gator Capital Management, LLC | 1.84% | Reduce -0.4% | 332,950 | $5.9M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.1% | 329,436 | $5.8M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -2.2% | 296,100 | $5.3M |
| Forum Financial Management, LP | 0.06% | Add +0.0% | 229,887 | $4.1M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +9.5% | 213,236 | $3.8M |
| LSV Asset Management | 0.01% | Add +19.9% | 203,126 | $3.6M |
| Bank of America Corp. | 0.00% | Reduce -13.9% | 198,449 | $3.5M |
| Great Lakes Advisors, LLC | 0.03% | Reduce -2.8% | 192,462 | $3.4M |
| Thrivent Financial for Lutherans | 0.01% | Add +42.1% | 189,920 | $3.4M |
| Empowered Funds, LLC | 0.04% | Add +6.1% | 178,125 | $3.2M |
| Siena Capital Partners GP, LLC | 0.85% | No change | 163,038 | $2.9M |
| Wellington Management Group LLP | 0.00% | Reduce -14.6% | 156,108 | $2.8M |
| Elizabeth Park Capital Advisors, Ltd. | 2.41% | Reduce -20.3% | 151,299 | $2.7M |
| EJF Capital LP | 2.02% | Add +16.9% | 143,286 | $2.5M |
| Barclays PLC | 0.00% | Add +39.1% | 133,477 | $2.4M |
| Martingale Asset Management L P | 0.06% | Add +27.7% | 131,992 | $2.3M |
| Knights of Columbus Asset Advisors LLC | 0.14% | Reduce -1.9% | 131,955 | $2.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +34.3% | 127,941 | $2.3M |
| Victory Capital Management Inc. | 0.00% | Add +403.8% | 121,908 | $2.2M |
| Two Sigma Investments, LP | 0.00% | Add +3.4% | 121,451 | $2.2M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +6.5% | 114,010 | $2.0M |
| Fisher Asset Management | 0.00% | No change | 108,023 | $1.9M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -15.6% | 106,708 | $1.9M |
| Ameriprise Financial Inc. | 0.00% | Add +11.0% | 106,127 | $1.9M |
| Curi Capital, LLC | 0.03% | Add +0.5% | 100,496 | $1.8M |
| Mendon Capital Advisors Corp. | 0.86% | No change | 100,000 | $1.8M |
| Brandywine Global Investment Management, LLC | 0.01% | Reduce -4.0% | 97,520 | $1.7M |
| MSH Capital Advisors LLC | 0.43% | No change | 84,826 | $1.5M |
| Renaissance Technologies | 0.00% | Reduce -45.5% | 82,725 | $1.5M |
| Swiss National Bank | 0.00% | Reduce -1.8% | 81,700 | $1.4M |
| Two Sigma Advisers, LP | 0.00% | Reduce -9.2% | 77,300 | $1.4M |
| Rhumbline Advisers | 0.00% | Add +4.1% | 71,093 | $1.3M |
| Invesco Ltd. | 0.00% | Reduce -6.3% | 70,339 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | Reduce -4.6% | 67,070 | $1.2M |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -0.2% | 58,772 | $1.1M |
| Hudson Edge Investment Partners Inc. | 0.18% | Add +1.4% | 60,674 | $1.1M |
| ExodusPoint Capital Management, LP | 0.01% | Add +33.3% | 60,405 | $1.1M |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 58,816 | $1.0M |
| Millennium Management | 0.00% | Reduce -79.7% | 57,426 | $1.0M |
| Versor Investments LP | 0.18% | New | 56,124 | $996K |
| Panagora Asset Management Inc. | 0.00% | New | 55,922 | $992K |
| Sei Investments Co. | 0.00% | Add +132.8% | 53,656 | $952K |
| Citadel Advisors | 0.00% | Add +126.8% | 51,755 | $918K |
| Royal Bank of Canada | 0.00% | Add +119.4% | 49,576 | $881K |
| Black Maple Capital Management LP | 0.58% | Add +11.8% | 47,500 | $843K |
| Legal & General Group Plc | 0.00% | Reduce -4.7% | 47,083 | $835K |
| Fourthstone LLC | 0.16% | New | 46,000 | $816K |
| Hunter Perkins Capital Management, LLC | 0.19% | Reduce -12.1% | 45,820 | $813K |
| Citigroup Inc. | 0.00% | Reduce -24.9% | 44,859 | $796K |
| HighTower Advisors, LLC | 0.00% | Reduce -6.6% | 44,306 | $786K |
| D. E. Shaw & Co. | 0.00% | Add +116.7% | 43,876 | $778K |
| AlphaQuest LLC | 0.07% | Reduce -13.5% | 42,988 | $763K |
| Teacher Retirement System of Texas | 0.00% | Add +1.9% | 41,578 | $738K |
| Jane Street Group, LLC | 0.00% | Reduce -51.0% | 40,586 | $720K |
| Principal Financial Group Inc. | 0.00% | Add +8.6% | 39,570 | $702K |
| California State Teachers Retirement System | 0.00% | Reduce -1.3% | 39,415 | $699K |
| Bailard, Inc. | 0.02% | Reduce -9.6% | 38,150 | $677K |
| Jump Financial, LLC | 0.01% | Add +107.2% | 37,718 | $669K |
| UBS Group AG | 0.00% | Reduce -25.1% | 37,271 | $661K |
| Creative Planning | 0.00% | Reduce -7.0% | 33,688 | $598K |
| Envestnet Asset Management Inc. | 0.00% | Add +22.7% | 33,284 | $590K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -13.4% | 32,776 | $581K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -17.1% | 32,634 | $579K |
| FMR LLC | 0.00% | Add +34.4% | 31,986 | $567K |
| HSBC Holdings PLC | 0.00% | Add +41.9% | 31,749 | $565K |
| Deutsche Bank AG | 0.00% | Reduce -16.5% | 31,093 | $552K |
| Ieq Capital, LLC | 0.00% | Add +3.8% | 30,779 | $546K |
| Prudential Financial Inc. | 0.00% | Add +120.4% | 29,330 | $520K |
| First Trust Advisors LP | 0.00% | Add +6.4% | 28,937 | $513K |
| Rothschild Investment LLC | 0.03% | Add +0.4% | 28,170 | $500K |
| Franklin Resources Inc. | 0.00% | No change | 28,116 | $499K |
| Wells Fargo & Company | 0.00% | Reduce -75.7% | 27,943 | $496K |
| T. Rowe Price Associates Inc. | 0.00% | Add +11.8% | 27,343 | $486K |
| Jupiter Asset Management Ltd. | 0.00% | Add +51.3% | 26,851 | $476K |
| MetLife Investment Management, LLC | 0.00% | No change | 25,502 | $452K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -62.1% | 24,465 | $434K |
| R Squared Ltd | 0.24% | Add +69.4% | 24,301 | $431K |
| Osaic Holdings, Inc. | 0.00% | Reduce -32.8% | 24,136 | $428K |
"% of holder's portfolio" is OSBC's weight in each manager's 13F, not the share of Old Second Bancorp Inc. the manager owns.