---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-26-000028"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2026-04-23T23:59:59+00:00"
generated_at: "2026-05-15T04:38:05.919841+00:00"
event_type: "regulatory"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Castellum achieves CMMC Level 2 C3PAO certification with perfect score

## Summary
- Achieved CMMC Level 2 with perfect score on all 110 controls and 320 objectives, no open POA&Ms.
- Certification enables bidding on DoD contracts requiring protection of Controlled Unclassified Information.
- Retained The Equity Group as investor relations partner to improve market visibility.
- Plans to launch redesigned company website in Q2 2026 as next technical milestone.

## SEC filing metadata
- accession: 0001877939-26-000028
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2026-04-23T23:59:59+00:00
- event_type: regulatory
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000028/0001877939-26-000028-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000028/ctm-20260423.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-26-000028
- JSON: https://secwatch.observer/filing/0001877939-26-000028.json
- Plain text: https://secwatch.observer/filing/0001877939-26-000028.txt

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