# OLD SECOND BANCORP INC DEL (OSBC)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/OSBC/

- Reporting holders: 5
- Reported value: $10.2M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [CONGRESS ASSET MANAGEMENT CO](https://holderbook.com/funds/897378-congress-asset-management-co/) | $10.1M | 411,201 | 0.1% | 2 |
| [Versant Capital Management, Inc](https://holderbook.com/funds/1735057-versant-capital-management-inc/) | $67.4K | 2,751 | 0.0% | 8 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $16.4K | 668 | 0.0% | 12 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $13.0K | 530 | 0.0% | 12 |
| [MassMutual Private Wealth & Trust, FSB](https://holderbook.com/funds/1103653-massmutual-private-wealth-trust-fsb/) | $318 | 13 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 5 | $10.2M |
| Q2 2026 | 185 | $983.6M |
| Q1 2026 | 189 | $762.1M |
| Q4 2025 | 185 | $726.3M |
| Q3 2025 | 197 | $638.4M |
| Q2 2025 | 183 | $580.6M |
| Q1 2025 | 192 | $546.8M |
| Q4 2024 | 180 | $574.3M |
| Q3 2024 | 176 | $512.3M |
| Q2 2024 | 154 | $471.5M |
| Q1 2024 | 151 | $438.0M |
| Q4 2023 | 160 | $491.2M |