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 | 391,960 | $7.9M | 0.74% |
| RENAISSANCE TECHNOLOGIES LLC | 90,225 | $1.8M | 0.17% |
| TWO SIGMA INVESTMENTS, LP | 67,357 | $1.4M | 0.13% |
| CITADEL ADVISORS LLC | 60,065 | $1.2M | 0.11% |
| MILLENNIUM MANAGEMENT LLC | 31,475 | $634,536 | 0.06% |
% 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.