Stocktoria
OLD SECOND BANCORP INC OSBC
OLD SECOND BANCORP INC institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| BlackRock Finance, Inc. | 3,436,814 | $50.9M | 6.53% |
| AQR CAPITAL MANAGEMENT LLC | 386,234 | $9.0M | 0.73% |
| CITADEL ADVISORS LLC | 304,021 | $7.1M | 0.58% |
| TWO SIGMA INVESTMENTS, LP | 200,819 | $4.7M | 0.38% |
| D. E. Shaw & Co., Inc. | 114,326 | $2.7M | 0.22% |
| RENAISSANCE TECHNOLOGIES LLC | 21,221 | $494,874 | 0.04% |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.