CTM insider buying
1 cluster buyCastellum, Inc. · Technology
When two or more insiders at Castellum, Inc. buy CTM 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 CTM 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
- Mar 18 – Mar 27, 2026Detected Mar 27, 2026High conviction2 insidersTotal bought$11.5KMarket cap$65.8M
All notable open-market buys in CTM
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 |
|---|---|---|---|---|---|
| Mar 27, 2026 | Merriman Andrewcluster Chief Operating Officer | 2,000 | $0.64 | $1.3K | SEC ↗ |
| Mar 27, 2026 | Ives Glen Rcluster President, Chief Executive Officer | 2,000 | $0.62 | $1.2K | SEC ↗ |
| Mar 26, 2026 | Ives Glen Rcluster President, Chief Executive Officer | 10,000 | $0.66 | $6.6K | SEC ↗ |
| Mar 18, 2026 | Merriman Andrewcluster Chief Operating Officer | 3,000 | $0.80 | $2.4K | SEC ↗ |
| Sep 4, 2024 | Director, General Counsel, Secretary, 10% Owner, EVP - Strategy | 272,300 | $0.16 | $43.6K | SEC ↗ |
| Sep 3, 2024 | Director, General Counsel, Secretary, 10% Owner, EVP - Strategy | 44,400 | $0.17 | $7.5K | SEC ↗ |
| Aug 29, 2024 | Director, General Counsel, Secretary, 10% Owner, EVP - Strategy | 61,597 | $0.16 | $9.9K | SEC ↗ |
| Aug 28, 2024 | Director, General Counsel, Secretary, 10% Owner, EVP - Strategy | 97,903 | $0.16 | $15.7K | SEC ↗ |
| Aug 14, 2024 | Director, General Counsel, Secretary, 10% Owner, EVP - Strategy | 115,240 | $0.14 | $16.1K | SEC ↗ |
| Jun 21, 2024 | Director, General Counsel, Secretary, 10% Owner, Chief Strategy Officer | 43,610 | $0.18 | $7.8K | SEC ↗ |
| Jun 20, 2024 | Director, General Counsel, Secretary, 10% Owner, Chief Strategy Officer | 80,610 | $0.18 | $14.5K | SEC ↗ |
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CTM insider buying — FAQ
- Are insiders buying CTM stock?
- Yes — 3 distinct insiders have bought CTM (Castellum, 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 Mar 27, 2026.
- How much CTM stock have insiders bought?
- Insiders have bought a combined $126.6K of CTM across 11 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in CTM?
- A cluster buy is two or more distinct Castellum, Inc. insiders — officers, directors, or 10% owners — each buying CTM on the open market within a rolling window. CTM has 1 detected cluster buy to date.
- Where does this CTM 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 CTM
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 CTM 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 CTM.