---
schema_version: "secwatch.filing_event.v1"
accession: "0001575872-23-000527"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2023-04-06T23:59:59+00:00"
generated_at: "2026-06-17T05:25:34.875860+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Castellum files charter amendment clarifying reverse stock split impact on preferred stock

## Summary
- Filed Certificate of Amendment with Nevada Secretary of State on April 5, 2023.
- Amendment clarifies effect of previously announced 1-for-20 reverse stock split on preferred stock.
- No change to the reverse split ratio or common stock treatment; purely procedural clarification.

## SEC filing metadata
- accession: 0001575872-23-000527
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2023-04-06T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000157587223000527/0001575872-23-000527-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000157587223000527/ctm-20230322.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001575872-23-000527
- JSON: https://secwatch.observer/filing/0001575872-23-000527.json
- Plain text: https://secwatch.observer/filing/0001575872-23-000527.txt

## Key facts
- Governance Changes
  Castellum, Inc.: Filed a Certificate of Amendment to clarify the impact of a 1-for-20 reverse stock split on preferred stock (effective 2023-04-05).
  - Change: charter amendment
  - Effective: 2023-04-05
  source text: On April 5, 2023, Castellum, Inc. (the “Company”), filed a Certificate of Amendment to the Company’s Amended and Restated Articles of Incorporation (the “Charter Amendment”), with the Secretary of State of Nevada to clarify the impact of the previously announced 1-for-20 reverse stock split of the Company’s issued and outstanding shares of Common Stock (the “Reverse Stock Split”) on the Company’s preferred stock.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1877939/000157587223000527/0001575872-23-000527-index.htm

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