---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-26-000089"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2026-10-13T20:14:11+00:00"
generated_at: "2026-10-13T20:15:04.670946+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.05
calibrated_materiality_score: 0.05
confidence: "high"
source: SEC EDGAR
---

# Castellum to attend 2026 Maxim Group Growth Summit Oct 14; management to hold investor meetings

## Summary
- Castellum, Inc. (NYSE American: CTM) announced participation in the 2026 Maxim Group Growth Summit on Wednesday, October 14, 2026.
- Management will meet institutional investors in one-on-one sessions throughout the event; no presentation or webcast was disclosed.
- No financial terms, guidance, or business updates were included in the Oct 12, 2026 announcement.
- Event details available at www.maximgrp.com/2026-growth-summit.

## SEC filing metadata
- accession: 0001877939-26-000089
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2026-10-13T20:14:11+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.05
- calibrated_materiality_score: 0.05
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000089/0001877939-26-000089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793926000089/ctm-20261012.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-26-000089
- JSON: https://secwatch.observer/filing/0001877939-26-000089.json
- Plain text: https://secwatch.observer/filing/0001877939-26-000089.txt

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