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# Who owns FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ)? Elite investor 13F holders

1 tracked elite investors reported holding FIRST BUSINESS FINANCIAL SERVICES, INC as of 2026-06-30, including Renaissance Technologies LLC. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

1 tracked investors currently reported holding · Latest report period: 2026-06-30 · Financials · Banks

First Business Financial Services, Inc. operates as the bank holding company for First Business Bank that provides commercial banking products and services for small and medium-sized businesses, business owners, executives, professionals, and high net worth individuals in Wisconsin, Kansas, and Missouri. The company offers commercial real estate lending, commercial and industrial lending,…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | FIRST BUSINESS FINL SVCS INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 7635042.00 USD | 120865.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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