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 |
|---|---|---|---|---|---|
| Envestnet Asset Management Inc | 19,591 | $394.9K | 0.00% | −1,287−6.2% | Reduced |
| Raymond James Financial Inc | 19,283 | $388.7K | 0.00% | −35,850−65.0% | Reduced |
| First Trust Advisors LP | 18,760 | $378.2K | 0.00% | −2,151−10.3% | Reduced |
| 4WEALTH Advisors, Inc. | 18,650 | $370.2K | 0.32% | 00.0% | Unchanged |
| Captrust Financial Advisors | 18,120 | $365.3K | 0.00% | −324−1.8% | Reduced |
| Mariner, LLC | 18,067 | $364.2K | 0.00% | −2,934−14.0% | Reduced |
| State of Wisconsin Investment Board | 17,885 | $360.6K | 0.00% | +1,744+10.8% | Added |
| Assenagon Asset Management S.A. | 17,860 | $360.1K | 0.00% | +17,860 | New |
| Federated Hermes, Inc. | 17,828 | $359.4K | 0.00% | +3,133+21.3% | Added |
| Centennial Wealth Advisory LLC | 17,507 | $352.9K | 0.09% | +50+0.3% | Added |
| Public Employees Retirement Association of Colorado | 17,258 | $348.0K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 16,739 | $337.5K | 0.00% | +2,294+15.9% | Added |
| Susquehanna Fundamental Investments, LLC | 16,425 | $331.1K | 0.01% | +16,425 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 15,821 | $319.0K | 0.00% | +1,039+7.0% | Added |
| Kestra Advisory Services, LLC | 14,909 | $300.6K | 0.00% | +50+0.3% | Added |
| New York State Common Retirement Fund | 14,366 | $289.6K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 14,232 | $286.9K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,193 | $286.1K | 0.00% | +2,032+16.7% | Added |
| Sentinel Trust Co Lba | 14,051 | $283.0K | 0.03% | −4,809−25.5% | Reduced |
| Princeton Capital Management LLC | 13,770 | $277.6K | 0.08% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 13,750 | $277.2K | 0.00% | +1,590+13.1% | Added |
| Arizona State Retirement System | 13,743 | $277.1K | 0.00% | −202−1.4% | Reduced |
| Amundi | 13,706 | $276.3K | 0.00% | +13,706 | New |
| CenterBook Partners LP | 13,425 | $270.6K | 0.01% | −16,463−55.1% | Reduced |
| State Board of Administration of Florida Retirement System | 12,390 | $249.8K | 0.00% | −46,426−78.9% | Reduced |
| Intech Investment Management LLC | 11,982 | $241.6K | 0.00% | −5,897−33.0% | Reduced |
| Cetera Investment Advisers | 11,702 | $235.9K | 0.00% | −4,318−27.0% | Reduced |
| Stratos Wealth Partners, LTD. | 11,663 | $235.1K | 0.00% | −14−0.1% | Reduced |
| Abacus Wealth Partners, LLC | 11,590 | $233.7K | 0.02% | −215−1.8% | Reduced |
| DRW Securities, LLC | 11,467 | $231.2K | 0.01% | +118+1.0% | Added |
| SG Americas Securities, LLC | 11,371 | $229.0K | 0.00% | −11,150−49.5% | Reduced |
| Caldwell Sutter Capital, Inc. | 11,000 | $221.8K | 0.09% | 00.0% | Unchanged |
| Hohimer Wealth Management, LLC | 10,912 | $220.0K | 0.03% | −1,585−12.7% | Reduced |
| KLP Kapitalforvaltning AS | 10,700 | $215.7K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 10,590 | $213.5K | 0.00% | +10,590 | New |
| Cerity Partners LLC | 10,537 | $212.4K | 0.00% | −578−5.2% | Reduced |
| Vanguard Investments Australia, Ltd. | 10,395 | $209.6K | 0.00% | +10,395 | New |
| Skopos Labs, Inc. | 10,216 | $206.0K | 0.01% | +10,216 | New |
| Savant Capital, LLC | 10,088 | $203.4K | 0.00% | +10,088 | New |
| Advisor Group Holdings, Inc. | 9,477 | $191.1K | 0.00% | −18,507−66.1% | Reduced |
| TSFG, LLC | 7,125 | $144.0K | 0.02% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 6,299 | $129.6K | 0.00% | −5,959−48.6% | Reduced |
| FMR LLC | 5,842 | $117.8K | 0.00% | +1,404+31.6% | Added |
| Sfam, LLC | 5,827 | $117.5K | 0.11% | 00.0% | Unchanged |
| Great West Life Assurance Co | 5,637 | $114.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 4,776 | $96.3K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 4,605 | $92.8K | 0.01% | +2,314+101.0% | Added |
| Ameritas Investment Partners, Inc. | 4,314 | $87.0K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 2,751 | $55.5K | 0.01% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 2,622 | $52.9K | 0.00% | +1,690+181.3% | Added |
| Quadrant Capital Group LLC | 2,523 | $50.9K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,491 | $50.2K | 0.00% | +1,113+80.8% | Added |
| State of Alaska, Department of Revenue | 1,771 | $35.0K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 1,671 | $33.7K | 0.00% | −23,056−93.2% | Reduced |
| EverSource Wealth Advisors, LLC | 1,562 | $31.5K | 0.00% | −42−2.6% | Reduced |
| MAI Capital Management | 1,491 | $30.1K | 0.00% | +17+1.2% | Added |
| SRS Capital Advisors, Inc. | 1,420 | $28.6K | 0.00% | +111+8.5% | Added |
| Harbour Investments, Inc. | 1,347 | $27.2K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 1,207 | $24.3K | 0.01% | 00.0% | Unchanged |
| Pinnacle Wealth Planning Services, Inc. | 1,045 | $21.1K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 985 | $19.9K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 783 | $15.8K | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 758 | $15.3K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 639 | $12.9K | 0.00% | +25+4.1% | Added |
| Allworth Financial LP | 508 | $10.2K | 0.00% | +7+1.4% | Added |
| Covestor Ltd | 486 | $10.0K | 0.01% | +39+8.7% | Added |
| Northwestern Mutual Wealth Management Co | 400 | $8.06K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 369 | $7.44K | 0.00% | −28,237−98.7% | Reduced |
| The PNC Financial Services Group, Inc. | 283 | $5.71K | 0.00% | −921−76.5% | Reduced |
| Quarry LP | 280 | $5.64K | 0.00% | +280 | New |
| Farther Finance Advisors, LLC | 264 | $5.40K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 265 | $5.34K | 0.00% | −1,131−81.0% | Reduced |
| Signaturefd, LLC | 215 | $4.33K | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 200 | $4.03K | 0.00% | −3,900−95.1% | Reduced |
| Optiver Holding B.V. | 186 | $3.75K | 0.00% | +104+126.8% | Added |
| Smartleaf Asset Management LLC | 159 | $3.16K | 0.00% | +138+657.1% | Added |
| Larson Financial Group LLC | 128 | $2.58K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 106 | $2.14K | 0.00% | +106 | New |
| True Wealth Design, LLC | 92 | $1.85K | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 76 | $1.53K | 0.00% | +76 | New |
| Bruce G. Allen Investments, LLC | 49 | $988 | 0.00% | +26+113.0% | Added |
| Torren Management, LLC | 44 | $888 | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 43 | $867 | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 36 | $705 | 0.00% | +36 | New |
| Caitong International Asset Management Co., Ltd | 24 | $484 | 0.00% | +19+380.0% | Added |
| TD Private Client Wealth LLC | 12 | $242 | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 3 | $60 | 0.00% | +2+200.0% | Added |
| GHP Investment Advisors, Inc. | 1 | $21 | 0.00% | +1 | New |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −243,192−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −64,157−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −30,267−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −25,189−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −24,375−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −20,927−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −17,956−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −14,583−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −12,731−100.0% | Sold out |
| J.W. Cole Advisors, Inc. | 0 | $0 | 0.00% | −10,495−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −8,478−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −7,000−100.0% | Sold out |