FBIZ insider buying
2 cluster buysFIRST BUSINESS FINANCIAL SERVICES, INC. · Financials
When two or more insiders at FIRST BUSINESS FINANCIAL SERVICES, INC. buy FBIZ on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in FBIZ plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Jul 30 – Jul 30, 2025Detected Jul 30, 20252 insidersTotal bought$525.9KMarket cap$538.2M
- May 1 – Jul 30, 2024Detected Jul 30, 2024High conviction2 insidersTotal bought$17.2KMarket cap$538.2M
All notable open-market buys in FBIZ
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Nov 7, 2025 | Chief Accounting Officer | 71 | $51.40 | $3.6K | SEC ↗ |
| Jul 30, 2025 | Kauten Ralph R.cluster Director | 10,000 | $47.80 | $478.0K | SEC ↗ |
| Jul 30, 2025 | Graham Jason Rcluster Director | 1,000 | $47.87 | $47.9K | SEC ↗ |
| Oct 30, 2024 | Director | 102 | $44.70 | $4.6K | SEC ↗ |
| Oct 30, 2024 | Director | 32 | $44.97 | $1.4K | SEC ↗ |
| Jul 30, 2024 | Sanders Carol Pcluster Director | 129 | $45.85 | $5.9K | SEC ↗ |
| May 21, 2024 | Crampton Kevin Dcluster Chief Accounting Officer | 154 | $34.15 | $5.3K | SEC ↗ |
| May 1, 2024 | Sanders Carol Pcluster Director | 100 | $34.35 | $3.4K | SEC ↗ |
| May 1, 2024 | Sanders Carol Pcluster Director | 75 | $34.46 | $2.6K | SEC ↗ |
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FBIZ insider buying — FAQ
- Are insiders buying FBIZ stock?
- Yes — 4 distinct insiders have bought FBIZ (FIRST BUSINESS FINANCIAL SERVICES, INC.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Nov 10, 2025.
- How much FBIZ stock have insiders bought?
- Insiders have bought a combined $552.7K of FBIZ across 9 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in FBIZ?
- A cluster buy is two or more distinct FIRST BUSINESS FINANCIAL SERVICES, INC. insiders — officers, directors, or 10% owners — each buying FBIZ on the open market within a rolling window. FBIZ has 2 detected cluster buys to date.
- Where does this FBIZ insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in FBIZ
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy FBIZ within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding FBIZ.