---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-26-000036"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2026-05-13T10:31:39+00:00"
generated_at: "2026-05-13T10:35:59.577972+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Castellum Q1 revenue up 23% to $14.3M; record backlog $273M; net loss improves to $0.4M

## Summary
- Revenue of $14.3M (+23% YoY); net loss $0.4M ($0.00 EPS) vs $1.2M loss in Q1 2025.
- Adjusted EBITDA $0.4M vs $0.08M; gross profit $5.1M (+11% YoY).
- Record backlog $273.3M; qualified pipeline $938M; debt-free with $15.8M cash.
- Expects ~16% of backlog recognized over 12 months, ~49% over 24 months.
- CEO highlights $219M in 2025 contract wins and new CMMC Level 2 certification.

## SEC filing metadata
- accession: 0001877939-26-000036
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2026-05-13T10:31:39+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000036/0001877939-26-000036-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000036/ctm-20260508.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-26-000036
- JSON: https://secwatch.observer/filing/0001877939-26-000036.json
- Plain text: https://secwatch.observer/filing/0001877939-26-000036.txt

## Key facts
- Earnings Releases
  Castellum, Inc. reported the three months ended March 31, 2026 results: revenue $14.3 million, net income Net loss was $0.4 million, EPS $0.00 per basic and diluted share.
  - Period: the three months ended March 31, 2026
  - Revenue: $14.3 million
  - Net income: Net loss was $0.4 million
  - EPS: $0.00 per basic and diluted share
  - Result: reported results
  source text: focused on the federal government, today announced its financial results for the three-month period (“Q1”) ended March 31, 2026. Q1 2026 Financial Highlights • Revenues of $14.3 million, up 23% as compared to $11.7 million in Q1 2025. • Gross profit of $5.1 million, up 11% as compared to $4.6 million in Q1 2025. • Adjusted EBITDA * was $0.4 million, compared to
  evidence_url: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000036/0001877939-26-000036-index.htm

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