MBCN insider buying
2 cluster buysMIDDLEFIELD BANC CORP · Financials
When two or more insiders at MIDDLEFIELD BANC CORP buy MBCN 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 MBCN 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
- Feb 3 – Feb 21, 2025Detected Feb 21, 2025High conviction3 insidersTotal bought$62.0KMarket cap$272.4M
- May 9 – Jun 5, 2024Detected Jun 5, 2024High conviction3 insidersTotal bought$75.9KMarket cap$272.4M
All notable open-market buys in MBCN
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 |
|---|---|---|---|---|---|
| Feb 21, 2025 | DiGeronimo Kevin Acluster Director | 1,950 | $25.65 | $50.0K | SEC ↗ |
| Feb 21, 2025 | Voinovich Michael Ccluster Director | 120 | $26.00 | $3.1K | SEC ↗ |
| Feb 21, 2025 | RANTTILA MICHAELcluster EVP/CFO | 48 | $25.15 | $1.2K | SEC ↗ |
| Feb 3, 2025 | RANTTILA MICHAELcluster EVP/CFO | 300 | $25.50 | $7.7K | SEC ↗ |
| Sep 16, 2024 | Director, Chief Executive Officer | 212.28 | $28.47 | $6.0K | SEC ↗ |
| Jun 5, 2024 | Wilson Thomas Mcluster EVP-Chief Strategy Officer | 1,000 | $20.98 | $21.0K | SEC ↗ |
| May 31, 2024 | Moeller Jennifer Lcluster Director | 200 | $21.40 | $4.3K | SEC ↗ |
| May 13, 2024 | Zimmerly Ronald Len Jr.cluster Director, EVP/Chief Executive Officer | 1,000 | $22.47 | $22.5K | SEC ↗ |
| May 9, 2024 | Wilson Thomas Mcluster EVP-Chief Strategy Officer | 1,000 | $22.38 | $22.4K | SEC ↗ |
| May 9, 2024 | Moeller Jennifer Lcluster Director | 250 | $23.00 | $5.8K | SEC ↗ |
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MBCN insider buying — FAQ
- Are insiders buying MBCN stock?
- Yes — 6 distinct insiders have bought MBCN (MIDDLEFIELD BANC CORP) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 27, 2025.
- How much MBCN stock have insiders bought?
- Insiders have bought a combined $143.9K of MBCN across 10 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in MBCN?
- A cluster buy is two or more distinct MIDDLEFIELD BANC CORP insiders — officers, directors, or 10% owners — each buying MBCN on the open market within a rolling window. MBCN has 2 detected cluster buys to date.
- Where does this MBCN 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 MBCN
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 MBCN 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 MBCN.