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, Q1 2026
Institutional positions in Old Second Bancorp Inc as of Mar 31, 2026. 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
- 188
- +8 vs. Q4 2025
- Shares held
- 37.8M
- +4.06M (+12.0%) vs. Q4 2025
- Total value
- $761.2M
- +$103.6M (+15.8%) vs. Q4 2025
- New holders
- 25
- 60 more added
- Sold out
- 17
- 64 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GHP Investment Advisors, Inc. | 1 | $21 | 0.00% | +1 | New |
| National Bank of Canada | 3 | $60 | 0.00% | +2+200.0% | Added |
| TD Private Client Wealth LLC | 12 | $242 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 24 | $484 | 0.00% | +19+380.0% | Added |
| Jones Financial Companies LLLP | 36 | $705 | 0.00% | +36 | New |
| First Horizon Corp | 43 | $867 | 0.00% | 00.0% | Unchanged |
| Torren Management, LLC | 44 | $888 | 0.00% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 49 | $988 | 0.00% | +26+113.0% | Added |
| Keating Financial Advisory Services, Inc. | 76 | $1.53K | 0.00% | +76 | New |
| True Wealth Design, LLC | 92 | $1.85K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 106 | $2.14K | 0.00% | +106 | New |
| Larson Financial Group LLC | 128 | $2.58K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 159 | $3.16K | 0.00% | +138+657.1% | Added |
| Optiver Holding B.V. | 186 | $3.75K | 0.00% | +104+126.8% | Added |
| Danske Bank A/S | 200 | $4.03K | 0.00% | −3,900−95.1% | Reduced |
| Signaturefd, LLC | 215 | $4.33K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 265 | $5.34K | 0.00% | −1,131−81.0% | Reduced |
| Farther Finance Advisors, LLC | 264 | $5.40K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 280 | $5.64K | 0.00% | +280 | New |
| The PNC Financial Services Group, Inc. | 283 | $5.71K | 0.00% | −921−76.5% | Reduced |
| Los Angeles Capital Management LLC | 369 | $7.44K | 0.00% | −28,237−98.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 400 | $8.06K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 486 | $10.0K | 0.01% | +39+8.7% | Added |
| Allworth Financial LP | 508 | $10.2K | 0.00% | +7+1.4% | Added |
| GAMMA Investing LLC | 639 | $12.9K | 0.00% | +25+4.1% | Added |
| Eastern Bank | 758 | $15.3K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 783 | $15.8K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 985 | $19.9K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Planning Services, Inc. | 1,045 | $21.1K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 1,207 | $24.3K | 0.01% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 1,347 | $27.2K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 1,420 | $28.6K | 0.00% | +111+8.5% | Added |
| MAI Capital Management | 1,491 | $30.1K | 0.00% | +17+1.2% | Added |
| EverSource Wealth Advisors, LLC | 1,562 | $31.5K | 0.00% | −42−2.6% | Reduced |
| Sterling Capital Management LLC | 1,671 | $33.7K | 0.00% | −23,056−93.2% | Reduced |
| State of Alaska, Department of Revenue | 1,771 | $35.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,491 | $50.2K | 0.00% | +1,113+80.8% | Added |
| Quadrant Capital Group LLC | 2,523 | $50.9K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 2,622 | $52.9K | 0.00% | +1,690+181.3% | Added |
| Versant Capital Management, Inc | 2,751 | $55.5K | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,314 | $87.0K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 4,605 | $92.8K | 0.01% | +2,314+101.0% | Added |
| Nisa Investment Advisors, LLC | 4,776 | $96.3K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 5,637 | $114.0K | 0.00% | 00.0% | Unchanged |
| Sfam, LLC | 5,827 | $117.5K | 0.11% | 00.0% | Unchanged |
| FMR LLC | 5,842 | $117.8K | 0.00% | +1,404+31.6% | Added |
| Bartlett & Co. Wealth Management LLC | 6,299 | $129.6K | 0.00% | −5,959−48.6% | Reduced |
| TSFG, LLC | 7,125 | $144.0K | 0.02% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 9,477 | $191.1K | 0.00% | −18,507−66.1% | Reduced |
| Savant Capital, LLC | 10,088 | $203.4K | 0.00% | +10,088 | New |
| Skopos Labs, Inc. | 10,216 | $206.0K | 0.01% | +10,216 | New |
| Vanguard Investments Australia, Ltd. | 10,395 | $209.6K | 0.00% | +10,395 | New |
| Cerity Partners LLC | 10,537 | $212.4K | 0.00% | −578−5.2% | Reduced |
| XTX Topco Ltd | 10,590 | $213.5K | 0.00% | +10,590 | New |
| KLP Kapitalforvaltning AS | 10,700 | $215.7K | 0.00% | 00.0% | Unchanged |
| Hohimer Wealth Management, LLC | 10,912 | $220.0K | 0.03% | −1,585−12.7% | Reduced |
| Caldwell Sutter Capital, Inc. | 11,000 | $221.8K | 0.09% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 11,371 | $229.0K | 0.00% | −11,150−49.5% | Reduced |
| DRW Securities, LLC | 11,467 | $231.2K | 0.01% | +118+1.0% | Added |
| Abacus Wealth Partners, LLC | 11,590 | $233.7K | 0.02% | −215−1.8% | Reduced |
| Stratos Wealth Partners, LTD. | 11,663 | $235.1K | 0.00% | −14−0.1% | Reduced |
| Cetera Investment Advisers | 11,702 | $235.9K | 0.00% | −4,318−27.0% | Reduced |
| Intech Investment Management LLC | 11,982 | $241.6K | 0.00% | −5,897−33.0% | Reduced |
| State Board of Administration of Florida Retirement System | 12,390 | $249.8K | 0.00% | −46,426−78.9% | Reduced |
| CenterBook Partners LP | 13,425 | $270.6K | 0.01% | −16,463−55.1% | Reduced |
| Amundi | 13,706 | $276.3K | 0.00% | +13,706 | New |
| Arizona State Retirement System | 13,743 | $277.1K | 0.00% | −202−1.4% | Reduced |
| BNP Paribas Arbitrage, SA | 13,750 | $277.2K | 0.00% | +1,590+13.1% | Added |
| Princeton Capital Management LLC | 13,770 | $277.6K | 0.08% | 00.0% | Unchanged |
| Sentinel Trust Co Lba | 14,051 | $283.0K | 0.03% | −4,809−25.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,193 | $286.1K | 0.00% | +2,032+16.7% | Added |
| Police & Firemen's Retirement System of New Jersey | 14,232 | $286.9K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 14,366 | $289.6K | 0.00% | 00.0% | Unchanged |
| Kestra Advisory Services, LLC | 14,909 | $300.6K | 0.00% | +50+0.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 15,821 | $319.0K | 0.00% | +1,039+7.0% | Added |
| Susquehanna Fundamental Investments, LLC | 16,425 | $331.1K | 0.01% | +16,425 | New |
| Mercer Global Advisors Inc | 16,739 | $337.5K | 0.00% | +2,294+15.9% | Added |
| Public Employees Retirement Association of Colorado | 17,258 | $348.0K | 0.00% | 00.0% | Unchanged |
| Centennial Wealth Advisory LLC | 17,507 | $352.9K | 0.09% | +50+0.3% | Added |
| Federated Hermes, Inc. | 17,828 | $359.4K | 0.00% | +3,133+21.3% | Added |
| Assenagon Asset Management S.A. | 17,860 | $360.1K | 0.00% | +17,860 | New |
| State of Wisconsin Investment Board | 17,885 | $360.6K | 0.00% | +1,744+10.8% | Added |
| Mariner, LLC | 18,067 | $364.2K | 0.00% | −2,934−14.0% | Reduced |
| Captrust Financial Advisors | 18,120 | $365.3K | 0.00% | −324−1.8% | Reduced |
| 4WEALTH Advisors, Inc. | 18,650 | $370.2K | 0.32% | 00.0% | Unchanged |
| First Trust Advisors LP | 18,760 | $378.2K | 0.00% | −2,151−10.3% | Reduced |
| Raymond James Financial Inc | 19,283 | $388.7K | 0.00% | −35,850−65.0% | Reduced |
| Envestnet Asset Management Inc | 19,591 | $394.9K | 0.00% | −1,287−6.2% | Reduced |
| Wells Fargo & Company | 19,822 | $399.6K | 0.00% | −36,722−64.9% | Reduced |
| Nicolet Bankshares Inc | 20,210 | $413.3K | 0.02% | +20,210 | New |
| nVerses Capital, LLC | 21,243 | $428.3K | 0.39% | +21,243 | New |
| Lakewood Asset Management LLC | 22,651 | $456.6K | 0.29% | +1,291+6.0% | Added |
| Ameriprise Financial Inc | 23,294 | $469.6K | 0.00% | −27,335−54.0% | Reduced |
| CWM, LLC | 23,515 | $474.1K | 0.00% | −570−2.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 23,641 | $476.6K | 0.00% | +236+1.0% | Added |
| Janus Henderson Group PLC | 26,232 | $529.0K | 0.00% | +10,597+67.8% | Added |
| Atom Investors LP | 26,934 | $543.0K | 0.04% | +26,934 | New |
| MetLife Investment Management | 28,053 | $565.5K | 0.00% | −295−1.0% | Reduced |
| Rothschild Investment LLC | 28,305 | $570.6K | 0.03% | +130.0% | Added |
| Vanguard Asset Management, Ltd | 30,459 | $614.1K | 0.00% | +30,459 | New |