OSBC
Old Second Bancorp, Inc. · Financial Services · Banks - Regional
Momentum inputs (comparable managers):
holder breadth +15.4% ·
share flow -4.2% ·
net new positions +13.3%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| 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 | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.31M | -9.6% | $21.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.13M | +8.9% | $18.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.13M | +8.9% | $18.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | AQR Capital Management ✦ | 540.95K | +33.6% | $9.00M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 540.95K | +33.6% | $9.00M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 540.95K | +33.6% | $9.00M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 540.95K | +33.6% | $9.00M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 540.95K | +33.6% | $9.00M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Millennium Management ✦ | 282.44K | -8.4% | $4.70M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 194.79K | +15.3% | $3.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Wellington Management ✦ | 182.84K | -45.7% | $3.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | Renaissance Technologies ✦ | 151.93K | +43.0% | $2.53M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | Two Sigma Investments ✦ | 117.46K | -20.8% | $1.95M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | Fisher Asset Management ✦ | 108.02K | 0.0% | $1.80M | 0.0% | Held | 4 | SEC ↗ |
| 15 | Adage Capital Partners ✦ | 100.00K | +42.9% | $1.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 24.45K | +10.3% | $407,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | T. Rowe Price ✦ | 24.45K | +10.3% | $407,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | Citadel Advisors ✦ | 22.82K | -89.1% | $379,675 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 19 | D. E. Shaw & Co. ✦ | 20.25K | New | $336,910 | 0.0% | New | 1 | SEC ↗ |
| 20 | Point72 Asset Management ✦ | 12.72K | -48.5% | $211,697 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Marshall Wace ✦ | 11.60K | New | $193,024 | 0.0% | New | 1 | SEC ↗ |
| 22 | Marshall Wace ✦ | 11.60K | New | $193,024 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $336,910 | 0.0% |
| Marshall Wace | $193,024 | 0.0% |
| Marshall Wace | $193,024 | 0.0% |
Exited
| No tracked exits this quarter. |
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.
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)
Officer, Director · 19.31K sh · $494,701
Officer, Director · 55.69K sh · $1.42M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology