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, Q3 2021
Institutional positions in Old Second Bancorp Inc as of Sep 30, 2021. 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
- 113
- 0 vs. Q2 2021
- Shares held
- 20.4M
- −67.1K (−0.3%) vs. Q2 2021
- Total value
- $266.1M
- +$12.5M (+4.9%) vs. Q2 2021
- New holders
- 16
- 40 more added
- Sold out
- 16
- 40 more reduced
2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Old Second Bancorp Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brandywine Global Investment Management, LLC | 490,894 | $6.41M | 0.05% | −5,600−1.1% | Reduced |
| State Street Corp | 539,538 | $7.05M | 0.00% | −6,025−1.1% | Reduced |
| Kennedy Capital Management, Inc. | 547,679 | $7.15M | 0.16% | −18,972−3.3% | Reduced |
| Stieven Capital Advisors, L.P. | 768,963 | $10.0M | 1.21% | +75,501+10.9% | Added |
| Patriot Financial Partners GP, LP | 853,664 | $11.1M | 2.96% | +300,000+54.2% | Added |
| Renaissance Technologies LLC | 872,375 | $11.4M | 0.01% | +24,550+2.9% | Added |
| Dimensional Fund Advisors LP | 893,041 | $11.7M | 0.00% | −110,137−11.0% | Reduced |
| Manufacturers Life Insurance Company, The | 1,064,941 | $13.9M | 0.01% | +3,048+0.3% | Added |
| FMR LLC | 1,092,119 | $14.3M | 0.00% | −31,816−2.8% | Reduced |
| Vanguard Group Inc | 1,344,837 | $17.6M | 0.00% | +76,864+6.1% | Added |
| Banc Funds Co LLC | 1,635,228 | $21.4M | 1.64% | −32,451−1.9% | Reduced |
| BlackRock Inc. | 2,016,159 | $26.3M | 0.00% | −119,407−5.6% | Reduced |
| FJ Capital Management LLC | 2,164,000 | $28.3M | 2.45% | +613,000+39.5% | Added |
| Stifel Financial Corp | 0 | $0 | 0.00% | −129,100−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −102,418−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −28,038−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −26,345−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −22,696−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −18,582−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −16,371−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −14,537−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −13,315−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −12,881−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −10,500−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −3,800−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −2,061−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −1,061−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −559−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| First Horizon Corp | – | – | – | – | Not filed |