---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-25-000060"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2025-06-06T23:59:59+00:00"
generated_at: "2026-05-19T18:41:19.603169+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Castellum retires promissory note 15 months early; long-term debt cut from $12M to under $5M

## Summary
- Retired promissory note with Buckhout Charitable Remainder Trust 15 months before maturity.
- Note was originally issued in November 2019 as partial consideration for Corvus Consulting acquisition.
- Total long-term debt reduced from over $12M in December 2023 to less than $5M after retirement.
- CFO David Bell cites stronger balance sheet and lower debt service as key benefits.

## SEC filing metadata
- accession: 0001877939-25-000060
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2025-06-06T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000060/0001877939-25-000060-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000060/ctm-20250605.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-25-000060
- JSON: https://secwatch.observer/filing/0001877939-25-000060.json
- Plain text: https://secwatch.observer/filing/0001877939-25-000060.txt

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