MBRX insider buying
1 cluster buyMoleculin Biotech, Inc. · Healthcare
When two or more insiders at Moleculin Biotech, Inc. buy MBRX 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 MBRX 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
- Jun 23 – Jun 23, 2025Detected Jun 23, 2025High conviction2 insidersTotal bought$350.0KMarket cap$12.8M
All notable open-market buys in MBRX
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 |
|---|---|---|---|---|---|
| Jun 23, 2025 | KLEMP WALTER Vcluster Director, CEO and President | 675,675 | $0.37 | $250.0K | SEC ↗ |
| Jun 23, 2025 | Foster Jonathan P.cluster Chief Financial Officer | 270,270 | $0.37 | $100.0K | SEC ↗ |
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MBRX insider buying — FAQ
- Are insiders buying MBRX stock?
- Yes — 2 distinct insiders have bought MBRX (Moleculin Biotech, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Jun 23, 2025.
- How much MBRX stock have insiders bought?
- Insiders have bought a combined $350.0K of MBRX across 2 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in MBRX?
- A cluster buy is two or more distinct Moleculin Biotech, Inc. insiders — officers, directors, or 10% owners — each buying MBRX on the open market within a rolling window. MBRX has 1 detected cluster buy to date.
- Where does this MBRX 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 MBRX
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 MBRX 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 MBRX.