Security record · archived quarter
OSBC
Old Second Bancorp, Inc. · Financial Services · Banks - Regional
86Tracked holders
+3Δ holders
25.75MShares held
$518.74MReported value
+6New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth +3.6% ·
share flow +1.3% ·
net new positions +3.5%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 46.27K | $1.15M | n/a | n/a |
| 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 · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.13M | -0.7% | $83.19M | 0.0% | ▼ Trim | 4 | SEC ↗ ×13 |
| 2 | Dimensional Fund Advisors Lp | 2.39M | +5.7% | $48.16M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 3 | Vanguard Capital Management Llc | 2.25M | n/a | $45.40M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Goldman Sachs Group ✦ | 1.69M | +33.9% | $34.10M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 5 | State Street Global Advisors ✦ (passive) | 1.60M | +3.9% | $32.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 6 | American Century Companies Inc | 1.59M | +8.2% | $32.07M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Boston Partners | 1.44M | +76.7% | $29.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 8 | Geode Capital Management ✦ (passive) | 1.28M | -6.1% | $25.85M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 9 | Manufacturers Life Insurance… | 878.67K | -1.5% | $17.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Wellington Management ✦ | 857.78K | -11.5% | $17.29M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 11 | Northern Trust Corp | 764.34K | -13.3% | $15.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 12 | JPMorgan Chase ✦ | 700.95K | -18.4% | $13.91M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 13 | Alliancebernstein L.P. | 690.85K | +0.7% | $13.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Charles Schwab Investment… | 430.91K | -1.5% | $8.69M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Nuveen, LLC | 419.64K | +1.0% | $8.46M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 16 | AQR Capital Management ✦ | 391.96K | -12.3% | $7.90M | 0.0% | ▼ Trim | 8 | SEC ↗ ×7 |
| 17 | Bank of New York Mellon Corp | 337.26K | -2.0% | $6.80M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 18 | Bank Of America Corp /De/ | 331.33K | -3.3% | $6.68M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 19 | Morgan Stanley ✦ | 278.39K | -3.4% | $5.61M | 0.0% | ▼ Trim | 3 | SEC ↗ ×10 |
| 20 | UBS Group AG | 259.27K | +46.4% | $5.23M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 21 | Sei Investments Co | 203.09K | +73.5% | $4.09M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 22 | Squarepoint Ops LLC | 170.65K | +252.1% | $3.44M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Blair William & Co/Il | 162.88K | +5.6% | $3.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | Arrowstreet Capital ✦ | 141.03K | -34.9% | $2.84M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 25 | Victory Capital Management Inc | 139.05K | -10.1% | $2.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Bank Of Montreal /Can/ | 118.47K | -14.9% | $2.39M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 27 | Russell Investments Group, Ltd. | 111.95K | -0.1% | $2.26M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 28 | Swiss National Bank | 98.70K | 0.0% | $1.99M | 0.0% | Held | 2 | SEC ↗ |
| 29 | Fisher Asset Management ✦ | 97.28K | 0.0% | $1.96M | 0.0% | Held | 8 | SEC ↗ |
| 30 | Renaissance Technologies ✦ | 90.22K | +4.5% | $1.82M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 31 | Franklin Resources Inc | 88.17K | New | $1.78M | 0.0% | New | 1 | SEC ↗ |
| 32 | Barclays Plc | 87.00K | -39.2% | $1.75M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 33 | Hsbc Holdings Plc | 85.18K | -46.8% | $1.72M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | Invesco Ltd. | 81.61K | +1.3% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 35 | Principal Financial Group Inc | 75.09K | +50.8% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 36 | UBS AM, a distinct business unit of… | 67.53K | +4.3% | $1.36M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | Two Sigma Investments ✦ | 67.36K | +106.6% | $1.36M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 38 | Rhumbline Advisers | 66.09K | -1.3% | $1.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | Citadel Advisors ✦ | 60.06K | -10.8% | $1.21M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 40 | Jane Street Group, Llc | 51.43K | New | $1.04M | 0.0% | New | 1 | SEC ↗ |
| 41 | Quantinno Capital Management LP | 49.88K | +58.8% | $1.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Creative Planning | 46.95K | -0.6% | $946,497 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | California State Teachers… | 46.80K | -0.8% | $943,407 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Deutsche Bank Ag\ | 46.48K | +12.8% | $936,976 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Wealth Enhancement Advisory… | 42.78K | +50.8% | $887,334 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | HighTower Advisors, LLC | 43.85K | -0.3% | $884,056 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | T. Rowe Price ✦ | 41.46K | +21.0% | $837,000 | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 48 | Corient Private Wealth LP | 41.09K | -49.8% | $825,354 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 49 | Legal & General Group Plc | 40.11K | -20.8% | $808,556 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 50 | Susquehanna International Group, Llp | 38.53K | New | $776,825 | 0.0% | New | 1 | SEC ↗ |
| 51 | Citigroup Inc | 37.23K | -18.0% | $750,576 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 52 | GAMCO Investors ✦ | 32.72K | 0.0% | $659,655 | 0.0% | Held | 3 | SEC ↗ |
| 53 | Royal Bank Of Canada | 31.57K | -9.4% | $637,000 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 54 | Millennium Management ✦ | 31.48K | -90.0% | $634,536 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | Janus Henderson Group Plc | 26.23K | +67.8% | $528,968 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 23.64K | +1.0% | $476,603 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Cwm, Llc | 23.52K | -2.4% | $474,069 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 58 | Ameriprise Financial Inc | 23.29K | -54.0% | $469,607 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 59 | Wells Fargo & Company/Mn | 19.82K | -64.9% | $399,608 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 60 | Envestnet Asset Management Inc | 19.59K | -6.2% | $394,944 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 61 | Raymond James Financial Inc | 19.28K | -65.0% | $388,745 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 62 | First Trust Advisors Lp | 18.76K | -10.3% | $378,201 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Captrust Financial Advisors | 18.12K | -1.8% | $365,292 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Mariner, LLC | 18.07K | -14.0% | $364,190 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | State Of Wisconsin Investment Board | 17.89K | +10.8% | $360,562 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Assenagon Asset Management S.A. | 17.86K | New | $360,058 | 0.0% | New | 1 | SEC ↗ |
| 67 | Federated Hermes, Inc. | 17.83K | +21.3% | $359,421 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 68 | Mercer Global Advisors Inc /Adv | 16.74K | +15.9% | $337,456 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Universal- Beteiligungs- und… | 15.82K | +7.0% | $318,951 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | New York State Common Retirement… | 14.37K | 0.0% | $289,619 | 0.0% | Held | 2 | SEC ↗ |
| 71 | Zurcher Kantonalbank (Zurich… | 14.19K | +16.7% | $286,131 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Bnp Paribas Financial Markets | 13.75K | +13.1% | $277,200 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Amundi | 13.71K | New | $276,313 | 0.0% | New | 1 | SEC ↗ |
| 74 | State Board Of Administration Of… | 12.39K | -78.9% | $249,782 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Cetera Investment Advisers | 11.70K | -26.9% | $235,922 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 76 | Cerity Partners LLC | 10.54K | -5.2% | $212,430 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 77 | Osaic Holdings, Inc. | 9.48K | -66.1% | $191,055 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 78 | Fidelity (FMR) ✦ | 5.84K | +31.6% | $117,776 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 79 | Us Bancorp \De\ | 985 | 0.0% | $19,858 | 0.0% | Held | 2 | SEC ↗ |
| 80 | Northwestern Mutual Wealth… | 400 | 0.0% | $8,064 | 0.0% | Held | 2 | SEC ↗ |
| 81 | Pnc Financial Services Group, Inc. | 283 | -76.5% | $5,705 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Rockefeller Capital Management L.P. | 265 | -81.0% | $5,342 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 83 | Danske Bank A/S | 200 | -95.1% | $4,032 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Optiver Holding B.V. | 186 | +126.8% | $3,750 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | Jones Financial Companies Lllp | 36 | New | $705 | 0.0% | New | 1 | SEC ↗ |
| 86 | National Bank Of Canada /Fi/ | 3 | +200.0% | $60 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Franklin Resources Inc | $1.78M | 0.0% |
| Jane Street Group, Llc | $1.04M | 0.0% |
| Susquehanna International… | $776,825 | 0.0% |
| Assenagon Asset Management… | $360,058 | 0.0% |
| Amundi | $276,313 | 0.0% |
| Jones Financial Companies Lllp | $705 | 0.0% |
Exited
| Adage Capital Partners | $4.74M | was 0.0% |
| Qube Research & Technologies… | $1.25M | was 0.0% |
| Canada Pension Plan… | $136,500 | 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: Q1 2026 ·
Methodology ·
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