Stocktoria
OLD SECOND BANCORP INC OSBC
Nasdaq · XNAS · stock · State Commercial Banks · website · IPO 1993-11-11
OLD SECOND BANCORP INC institutional holders (13F)
| Investor | Shares | Value |
|---|---|---|
| BlackRock Finance, Inc. | 3,436,814 | $50.9M |
| AQR CAPITAL MANAGEMENT LLC | 391,960 | $7.9M |
| RENAISSANCE TECHNOLOGIES LLC | 90,225 | $1.8M |
| TWO SIGMA INVESTMENTS, LP | 67,357 | $1.4M |
| CITADEL ADVISORS LLC | 60,065 | $1.2M |
| MILLENNIUM MANAGEMENT LLC | 31,475 | $634,536 |
Source: SEC EDGAR filings · CIK 0000357173 · as of 2025-12-31. Facts from filings plus Stocktoria's own computed scores — not investment advice.