Castellum Inc is focused on building a successful technology services, solutions, and products company in the areas of cybersecurity, IT, electronic warfare, information warfare, system modernization, and information operations with businesses in the defense, federal, civilian, and commercial markets. Services include intelligence analysis, software development, software engineering, program management, strategic and mission planning, information assurance, cybersecurity and policy support, data analytics, and model-based systems engineering. The company maintains one operating and reportable segment, which is the delivery of products and services in the areas of information technology, electronic warfare, information warfare and cybersecurity in the governmental and commercial markets.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 4 | 4,868 | $3K |
| Grant or award | 1 | 773,630 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
31 Form 4 filings on record, the earliest from Aug 18, 2025, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Open-market sale | Common Stock | 225,000 | $1.08 | $243K | ||
| Open-market sale | Common Stock | 126,000 | $1.05 | $132K |
This is as far as the anonymous view goes. Create a free account for all 31 CTM filings on record.
Castellum, Inc. (CTM) had 4 insider filings in the last 90 days, with the most recent on 2026-07-02. The full record for CTM runs to 31 Form 4 filings, the earliest from 2025-08-18. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
4 insider purchases of CTM were filed in the last 90 days, totaling $3K.
No insider sales of CTM were filed in the last 90 days. 23 sales are on record for this company.
This page tracks CTM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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