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 | 75 | -6 | 26.30M | $611.19M | +2 | −10 |
| 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 | n/a | −2 |
| Q1 2025 | 15 | +2 | 4.21M | $70.01M | +2 | n/a |
| Q4 2024 | 13 | 0 | 4.39M | $78.07M | +1 | −1 |
| Q3 2024 | 12 | +1 | 2.37M | $37.00M | +1 | n/a |
| Q2 2024 | 11 | n/a | 2.48M | $36.78M | n/a | n/a |
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 ↗ ×13 |
| 2 | The Vanguard Group ✦ (passive) | 3.28M | +0.3% | $63.93M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 3 | Dimensional Fund Advisors Lp | 2.26M | n/a | $44.09M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 4 | State Street Global Advisors ✦ (passive) | 1.54M | +12.6% | $30.02M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | American Century Companies Inc | 1.47M | n/a | $28.67M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 1.37M | +0.2% | $26.63M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 7 | Goldman Sachs Group ✦ | 1.26M | -19.0% | $24.63M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 8 | Wellington Management ✦ | 969.71K | +521.2% | $18.91M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 9 | Manufacturers Life Insurance… | 891.88K | n/a | $17.39M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Northern Trust Corp | 881.58K | n/a | $17.19M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 11 | JPMorgan Chase ✦ | 858.81K | -45.0% | $16.75M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 12 | Boston Partners | 817.31K | n/a | $15.99M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 13 | Alliancebernstein L.P. | 686.03K | n/a | $13.38M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 447.12K | -13.7% | $8.72M | 0.0% | ▼ Trim | 7 | SEC ↗ ×6 |
| 15 | Charles Schwab Investment… | 437.51K | n/a | $8.53M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Nuveen, LLC | 415.47K | n/a | $8.10M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 17 | Bank of New York Mellon Corp | 344.29K | n/a | $6.71M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 18 | Bank Of America Corp /De/ | 342.58K | n/a | $6.68M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 19 | Millennium Management ✦ | 313.56K | New | $6.11M | 0.0% | New | 1 | SEC ↗ |
| 20 | Morgan Stanley ✦ | 288.12K | -7.0% | $5.62M | 0.0% | ▼ Trim | 2 | SEC ↗ ×12 |
| 21 | Adage Capital Partners ✦ | 243.19K | New | $4.74M | 0.0% | New | 1 | SEC ↗ |
| 22 | Arrowstreet Capital ✦ | 216.51K | -0.2% | $4.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 23 | UBS Group AG | 177.10K | n/a | $3.45M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 24 | Hsbc Holdings Plc | 160.21K | n/a | $3.12M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 25 | Victory Capital Management Inc | 154.72K | n/a | $3.02M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Blair William & Co/Il | 154.22K | n/a | $3.01M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Barclays Plc | 143.19K | n/a | $2.79M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 28 | Bank Of Montreal /Can/ | 139.25K | n/a | $2.72M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 29 | Sei Investments Co | 117.03K | n/a | $2.28M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 30 | Russell Investments Group, Ltd. | 112.12K | n/a | $2.19M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | Swiss National Bank | 98.70K | n/a | $1.92M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Fisher Asset Management ✦ | 97.28K | -5.1% | $1.90M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 33 | Renaissance Technologies ✦ | 86.33K | +75.7% | $1.68M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 34 | Corient Private Wealth LP | 81.87K | n/a | $1.60M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 35 | Invesco Ltd. | 80.55K | n/a | $1.57M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 36 | Citadel Advisors ✦ | 67.31K | -13.2% | $1.31M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 37 | Rhumbline Advisers | 66.97K | n/a | $1.31M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | UBS AM, a distinct business unit of… | 64.74K | n/a | $1.26M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 39 | Qube Research & Technologies Ltd | 64.16K | n/a | $1.25M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | State Board Of Administration Of… | 58.82K | n/a | $1.15M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Wells Fargo & Company/Mn | 56.54K | n/a | $1.10M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 42 | Raymond James Financial Inc | 55.13K | n/a | $1.08M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 43 | Ameriprise Financial Inc | 50.63K | n/a | $987,268 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 44 | Legal & General Group Plc | 50.62K | n/a | $987,170 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 45 | Principal Financial Group Inc | 49.78K | n/a | $970,750 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 46 | Squarepoint Ops LLC | 48.47K | n/a | $945,204 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Creative Planning | 47.21K | n/a | $920,573 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | California State Teachers… | 47.17K | n/a | $919,854 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Citigroup Inc | 45.42K | n/a | $885,769 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 50 | HighTower Advisors, LLC | 44.00K | n/a | $858,039 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Deutsche Bank Ag\ | 41.19K | n/a | $803,147 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Royal Bank Of Canada | 34.83K | n/a | $679,000 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 53 | T. Rowe Price ✦ | 34.26K | +6.3% | $669,000 | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 54 | GAMCO Investors ✦ | 32.72K | 0.0% | $638,060 | 0.0% | Held | 2 | SEC ↗ |
| 55 | Two Sigma Investments ✦ | 32.60K | -82.6% | $635,681 | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 56 | Quantinno Capital Management LP | 31.42K | n/a | $612,653 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Wealth Enhancement Advisory… | 28.36K | n/a | $563,876 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Osaic Holdings, Inc. | 27.98K | n/a | $545,734 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 59 | Cwm, Llc | 24.09K | n/a | $470,000 | 0.0% | n/c | 1 | SEC ↗ |
| 60 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 23.41K | n/a | $456,398 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Mariner, LLC | 21.00K | n/a | $409,609 | 0.0% | n/c | 1 | SEC ↗ |
| 62 | First Trust Advisors Lp | 20.91K | n/a | $407,764 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Envestnet Asset Management Inc | 20.88K | n/a | $407,118 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Captrust Financial Advisors | 18.44K | n/a | $359,658 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | State Of Wisconsin Investment Board | 16.14K | n/a | $314,750 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Cetera Investment Advisers | 16.02K | n/a | $312,384 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Janus Henderson Group Plc | 15.63K | n/a | $304,883 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Universal- Beteiligungs- und… | 14.78K | n/a | $288,250 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Federated Hermes, Inc. | 14.70K | n/a | $286,561 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 70 | Mercer Global Advisors Inc /Adv | 14.45K | n/a | $281,678 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | New York State Common Retirement… | 14.37K | n/a | $280,137 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Zurcher Kantonalbank (Zurich… | 12.16K | n/a | $237,140 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Bnp Paribas Financial Markets | 12.16K | n/a | $237,120 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Cerity Partners LLC | 11.12K | n/a | $216,744 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 75 | Canada Pension Plan Investment Board | 7.00K | n/a | $136,500 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Fidelity (FMR) ✦ | 4.44K | -71.6% | $86,540 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 77 | Danske Bank A/S | 4.10K | n/a | $79,950 | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Rockefeller Capital Management L.P. | 1.40K | n/a | $27,222 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 79 | Pnc Financial Services Group, Inc. | 1.20K | n/a | $23,478 | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Us Bancorp \De\ | 985 | n/a | $19,208 | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Northwestern Mutual Wealth… | 400 | n/a | $7,800 | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Optiver Holding B.V. | 82 | n/a | $1,599 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | National Bank Of Canada /Fi/ | 1 | n/a | $19 | 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)
Sep 23
COLLINS GARY S
Officer, Director · 16.00K sh · $395,080
Sep 08
MCLEAN HUGH H
Director · 25.00K sh · $640,768
Sep 04
COLLINS GARY S
Officer, Director · 5.00K sh · $128,525
Sep 02
Campbell Darin Patrick
Officer, Director · 24.00K sh · $612,792
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
Oct 08
SC 13G: DIMENSIONAL FUND ADVISORS LP
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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