---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-26-000012"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2026-03-05T23:59:59+00:00"
generated_at: "2026-05-15T19:54:53.629201+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Castellum 2025 revenue up 15.2% to $52.9M; net loss narrows to $2.5M

## Summary
- Revenue $52.9M (+15.2% YoY); operating loss improved to $2.8M from $7.2M.
- Net loss to common shareholders $2.5M vs $10.1M; Adjusted EBITDA $1.0M vs $0.8M.
- Cash increased to $14.9M from $12.3M; debt cut to $0.4M from $10.7M.
- Organic growth driven by three prime contract wins; cash-to-debt ratio improved from 1x to 37x.
- Stock-based compensation fell to $2.4M from $5.4M; D&A $1.5M from $2.2M.

## SEC filing metadata
- accession: 0001877939-26-000012
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2026-03-05T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000012/0001877939-26-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000012/ctm-20260304.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-26-000012
- JSON: https://secwatch.observer/filing/0001877939-26-000012.json
- Plain text: https://secwatch.observer/filing/0001877939-26-000012.txt

## Key facts
- Earnings Releases
  Castellum, Inc. reported year ended December 31, 2025 results: revenue $52.9 million, net income $2.5 million.
  - Period: year ended December 31, 2025
  - Revenue: $52.9 million
  - Net income: $2.5 million
  - Result: reported results
  source text: company focused on the federal government, announces certain unaudited highlights of its operating results for its year ended December 31, 2025. Revenue for 2025 increased to $52.9 million, representing an $8.1 million (15.2%) increase over $44.8 million in 2024. Operating loss improved to $2.8 million, a $4.4 million year-over-year improvement from an operating
  evidence_url: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000012/0001877939-26-000012-index.htm

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