OSBC
Old Second Bancorp, Inc. · Financial Services · Banks - Regional
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| 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 |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 1.01M | n/a | $14.91M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 2 | Wellington Management ✦ | 394.20K | n/a | $5.84M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | AQR Capital Management ✦ | 308.00K | n/a | $4.56M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 4 | Renaissance Technologies ✦ | 222.53K | n/a | $3.30M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Two Sigma Investments ✦ | 120.55K | n/a | $1.79M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Millennium Management ✦ | 108.10K | n/a | $1.60M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Fisher Asset Management ✦ | 108.02K | n/a | $1.60M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | D. E. Shaw & Co. ✦ | 97.91K | n/a | $1.45M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 57.43K | n/a | $850,583 | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 40.91K | n/a | $606,000 | 0.0% | n/c | 1 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 18.97K | n/a | $282,000 | 0.0% | n/c | 1 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
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 · 16.00K sh · $395,080
Director · 25.00K sh · $640,768
Officer, Director · 5.00K sh · $128,525
Officer, Director · 24.00K sh · $612,792
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