This is a standard index-fund driven 13G filing by Vanguard, consistent with passive investment strategies. The stake is modest at just over 5%, and the filing does not signal any activist intent. Monitor for any future amendments that show accumulation above 10%, which would indicate a stronger conviction position.
Price Chart
Executive Summary
Vanguard Capital Management LLC disclosed a new 5.03% passive stake in Old Second Bancorp Inc via Schedule 13G, reporting beneficial ownership of 2,562,549 shares as of September 30, 2026. This is a routine passive filing by a large index/asset manager, indicating no intent to influence management.
Key Financial Metrics
Key Facts
- Vanguard Capital Management LLC filed a new Schedule 13G disclosing 5.03% beneficial ownership in Old Second Bancorp Inc
- Stake consists of 2,562,549 shares of common stock as of September 30, 2026
- Filer certifies passive intent under Rule 13d-1(b), with no purpose of changing or influencing control
- Vanguard Capital Management is a registered investment adviser, part of the Vanguard group of asset managers
- Prior 13G by Dimensional Fund Advisors (22 days ago) disclosed a 5.1% stake, and a prior 13G/A by Vanguard Group Inc (March 2026) was also on file
Financial Impact
Stake valued at approximately $60.4M based on $1.2B market cap and 5.03% ownership
Risk Factors
- No material risks identified; this is a routine passive filing
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0002100119-26-001679 |
| Document: 0002100119-26-001679-index.html | 0002100119-26-001679 |
| Document: 0002100119-26-001679.txt | 0002100119-26-001679 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G | $24.59 | awaiting T+5 | awaiting T+5 | $24.30 (−1.18%) |
Oct 21, 2026 11d ago | 8-K | $24.71 $24.63 | ▼ −0.32% | ▼ −1.03% | $24.30 (−1.66%) |
Oct 20, 2026 12d ago | 8-K | $25.10 $24.60 | ▼ −1.99% | ▼ −2.07% | $24.30 (−3.19%) |
Oct 19, 2026 13d ago | 8-K | $25.10 $24.60 | ▼ −1.99% | ▼ −2.07% | $24.30 (−3.19%) |
Oct 8, 2026 24d ago | SC 13G | $24.86 $24.85 | ▼ −0.04% | ▲ +0.24% | $24.30 (−2.25%) |
Oct 1, 2026 4w ago | 8-K | $24.63 $24.86 | ▲ +0.93% | ▼ −0.37% | $24.30 (−1.34%) |
Sep 11, 2026 7w ago | Insider Cluster | $25.58 $24.99 | ▲ +2.31% | ▲ +2.09% | $24.30 (+5.00%) |
Sep 8, 2026 7w ago | Insider Cluster | $25.26 $24.98 | ▼ −1.11% | ▼ −0.01% | $24.30 (−3.80%) |
Aug 18, 2026 10w ago | S-3ASR | $25.66 $25.19 | ▼ −1.83% | ▼ −1.63% | $24.30 (−5.30%) |
Jul 21, 2026 14w ago | 8-K | $23.68 $24.72 | ▲ +4.39% | ▲ +5.62% | $24.30 (+2.62%) |
US Market Status
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