Security record · archived quarter
OSBC
Old Second Bancorp, Inc. · Financial Services · Banks - Regional
83Tracked holders
0Δ holders
26.46MShares held
$516.04MReported value
+2New positions
−2Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +2.3% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 76 | -7 | 26.35M | $612.20M | +2 | −9 |
| Q1 2026 | 86 | +3 | 25.75M | $518.74M | +6 | −3 |
| Q4 2025 | 83 | 0 | 26.46M | $516.04M | +2 | −2 |
| Q3 2025 | 19 | 0 | 14.70M | $254.02M | +1 | −1 |
| Q2 2025 | 16 | -2 | 10.11M | $179.35M | — | −2 |
| Q1 2025 | 15 | +2 | 4.21M | $70.01M | +2 | — |
| Q4 2024 | 13 | 0 | 4.39M | $78.07M | +1 | −1 |
| Q3 2024 | 12 | +1 | 2.37M | $37.00M | +1 | — |
| Q2 2024 | 11 | — | 2.48M | $36.78M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 4.16M | +8.9% | $81.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | Dimensional Fund Advisors Lp | 2.26M | — | $44.09M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Dimensional Fund Advisors Lp | 2.26M | — | $44.09M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Dimensional Fund Advisors Lp | 2.26M | — | $44.09M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Dimensional Fund Advisors Lp | 2.26M | — | $44.09M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 1.54M | +12.6% | $30.02M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | American Century Companies Inc | 1.47M | — | $28.67M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 1.37M | +0.2% | $26.63M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.37M | +0.2% | $26.63M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | Goldman Sachs Group ✦ | 1.26M | -19.0% | $24.63M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | Goldman Sachs Group ✦ | 1.26M | -19.0% | $24.63M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | Wellington Management ✦ | 969.71K | +521.2% | $18.91M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 30 | Manufacturers Life Insurance… | 891.88K | — | $17.39M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Northern Trust Corp | 881.58K | — | $17.19M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Boston Partners | 817.31K | — | $15.99M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Boston Partners | 817.31K | — | $15.99M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Alliancebernstein L.P. | 686.03K | — | $13.38M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 46 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 47 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 48 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 49 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 50 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 51 | Charles Schwab Investment… | 437.51K | — | $8.53M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Nuveen, LLC | 415.47K | — | $8.10M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Nuveen, LLC | 415.47K | — | $8.10M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Bank of New York Mellon Corp | 344.29K | — | $6.71M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Bank of New York Mellon Corp | 344.29K | — | $6.71M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Bank of New York Mellon Corp | 344.29K | — | $6.71M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 344.29K | — | $6.71M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Bank of New York Mellon Corp | 344.29K | — | $6.71M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Bank Of America Corp /De/ | 342.58K | — | $6.68M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Millennium Management ✦ | 313.56K | New | $6.11M | 0.0% | New | 1 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 70 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | Adage Capital Partners ✦ | 243.19K | New | $4.74M | 0.0% | New | 1 | SEC ↗ |
| 79 | Arrowstreet Capital ✦ | 216.51K | -0.2% | $4.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 80 | UBS Group AG | 177.10K | — | $3.45M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | UBS Group AG | 177.10K | — | $3.45M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | UBS Group AG | 177.10K | — | $3.45M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Hsbc Holdings Plc | 160.21K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Hsbc Holdings Plc | 160.21K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Victory Capital Management Inc | 154.72K | — | $3.02M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Blair William & Co/Il | 154.22K | — | $3.01M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Barclays Plc | 143.19K | — | $2.79M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Barclays Plc | 143.19K | — | $2.79M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Bank Of Montreal /Can/ | 139.25K | — | $2.72M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Bank Of Montreal /Can/ | 139.25K | — | $2.72M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Sei Investments Co | 117.03K | — | $2.28M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Sei Investments Co | 117.03K | — | $2.28M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Russell Investments Group, Ltd. | 112.12K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Russell Investments Group, Ltd. | 112.12K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Russell Investments Group, Ltd. | 112.12K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Swiss National Bank | 98.70K | — | $1.92M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Fisher Asset Management ✦ | 97.28K | -5.1% | $1.90M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 98 | Renaissance Technologies ✦ | 86.33K | +75.7% | $1.68M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 99 | Corient Private Wealth LP | 81.87K | — | $1.60M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Corient Private Wealth LP | 81.87K | — | $1.60M | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Millennium Management | $6.11M | 0.0% |
| Adage Capital Partners | $4.74M | 0.0% |
Exited
| Point72 Asset Management | $824,010 | was 0.0% |
| D. E. Shaw & Co. | $210,289 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 187 holders, 37.08M shares, $741.50M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 12
Eccher James
Officer, Director · 19.31K sh · $494,701
Aug 11
Eccher James
Officer, Director · 55.69K sh · $1.42M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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