OLD SECOND BANCORP INC — Investor Relations & Filings
Old Second Bancorp, Inc. is the bank holding company for Old Second National Bank, a community bank established in 1871. The company provides a comprehensive suite of financial services to individuals, families, and businesses. Its core offerings include personal and commercial banking, wealth management, and mortgage lending. Personal banking services encompass a variety of deposit products, such as checking, savings, and money market accounts, alongside consumer and home loans. The commercial banking division caters to the financial needs of businesses. Additionally, the company offers wealth management and trust services to help clients manage and grow their assets. Old Second Bancorp focuses on building long-term relationships within the communities it serves.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K | 2026-05-20 | English | |
| 8-K | 2026-05-19 | English | |
| 10-Q - OLD SECOND BANCORP INC (0000357173) (Filer) | 2026-05-07 | English | |
| 8-K | 2026-04-22 | English | |
| 8-K - OLD SECOND BANCORP INC (0000357173) (Filer) | 2026-04-21 | English | |
| ARS - OLD SECOND BANCORP INC (0000357173) (Filer) | 2026-04-06 | English |
Browse filings by year
17 yearsMarket data
Market data not available
Price history
Peer group · Other monetary intermediation
| Company | Ticker | Country | Sector |
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Bank of China Ltd DU SOFR+0.6% 18Sep2026
Provides banking and financial solutions globally to corpor…
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Bank of China Ltd DU SOFRX+0.43% 24Nov28
Global financial institution providing comprehensive bankin…
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Bank of China Ltd LUX 2.980% 18Sep2026
Major financial institution providing corporate and persona…
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Bank of Chongqing Co., Ltd.
Commercial bank providing comprehensive corporate, personal…
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1963 | CN | Financial and insurance activit… |
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Bank of Communications Co., Ltd.
Major financial institution providing comprehensive banking…
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3328 | CN | Financial and insurance activit… |
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Bank of Communications Co.,Ltd.
Provides comprehensive banking, wealth management, and insu…
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601328 | CN | Financial and insurance activit… |
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Bank of Cyprus Holdings PLC
A financial services group providing banking, financial, an…
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BOCH | IE | Financial and insurance activit… |
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Bank of Gansu Co., Ltd.
Provincial urban commercial bank offering deposits, loans, …
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2139 | CN | Financial and insurance activit… |
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Bank of Georgia JSC
A universal financial institution offering retail and corpo…
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GEB | GE | Financial and insurance activit… |
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Bank of Guiyang Co.,Ltd.
Provides retail and corporate banking, wealth management, a…
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601997 | CN | Financial and insurance activit… |
OLD SECOND BANCORP INC via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/32302/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=32302 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=32302 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=32302 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 32302}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for OLD SECOND BANCORP INC (id: 32302)"
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