---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-25-000089"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2025-08-19T23:59:59+00:00"
generated_at: "2026-05-17T11:33:52.463903+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Castellum subsidiary signs reseller agreement with Tradewinds Networks for GuardTower AI cybersecurity

## Summary
- Castellum Advanced Technology Products subsidiary will resell TNI's GuardTower AI cybersecurity products.
- GuardTower AI offers AI-driven threat detection, data intelligence, and resilient edge protection.
- No financial terms of the reseller agreement were disclosed.
- Partnership aims to deliver advanced cybersecurity to Castellum's national security and commercial clients.

## SEC filing metadata
- accession: 0001877939-25-000089
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2025-08-19T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000089/0001877939-25-000089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000089/ctm-20250819.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-25-000089
- JSON: https://secwatch.observer/filing/0001877939-25-000089.json
- Plain text: https://secwatch.observer/filing/0001877939-25-000089.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.