---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-24-000066"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2024-09-03T23:59:59+00:00"
generated_at: "2026-05-31T06:41:20.646200+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Castellum promotes Drew Merriman to COO effective September 1, 2024

## Summary
- Merriman fills vacancy created by Glen Ives' promotion to CEO on July 1, 2024.
- He co-founded Merrison Technologies (MTech) in 2013 and served as CEO; Castellum acquired MTech in 2021.
- Under Merriman, MTech made the Inc. 5000 fastest-growing companies list in 2018 with 176% revenue growth over three years.
- Merriman spent 10 years at Northrop Grumman, advancing from Software Development Manager to Technical Director.

## SEC filing metadata
- accession: 0001877939-24-000066
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2024-09-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793924000066/0001877939-24-000066-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793924000066/ctm-20240901.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-24-000066
- JSON: https://secwatch.observer/filing/0001877939-24-000066.json
- Plain text: https://secwatch.observer/filing/0001877939-24-000066.txt

## Key facts
- Executive change
  Andrew "Drew" Merriman was appointed as Chief Operating Officer at Castellum, Inc..
  - Action: appointed
  - Role: Chief Operating Officer
  source text: Effective September 1, 2024, Andrew "Drew" Merriman was appointed as Chief Operating Officer of Castellum, Inc.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1877939/000187793924000066/0001877939-24-000066-index.htm

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