---
schema_version: "secwatch.filing_event.v1"
accession: "0001877939-25-000056"
form_type: "8-K"
ticker: "CTM"
cik: "0001877939"
company_name: "Castellum, Inc."
filed_at: "2025-05-28T23:59:59+00:00"
generated_at: "2026-05-20T08:46:24.963060+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Castellum elects all six directors; shareholders approve 9M share increase in stock plan

## Summary
- Directors elected: Mark S. Alarie, John F. Campbell, Bernard S. Champoux, Glen R. Ives, C. Thomas McMillen, Jay O. Wright.
- Ratification of RSM US LLP as auditor for FY2025 approved: 47,509,563 for, 261,837 against.
- 2021 Stock Incentive Plan amended to reserve 9,000,000 shares; approved with 27,925,938 for (~93.3% of votes cast).
- 2025 Employee Stock Purchase Plan adopted; approved with 31,678,581 for (~99.0% of votes cast).

## SEC filing metadata
- accession: 0001877939-25-000056
- form_type: 8-K
- ticker: CTM
- cik: 0001877939
- company_name: Castellum, Inc.
- filed_at: 2025-05-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000056/0001877939-25-000056-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1877939/000187793925000056/ctm-20250528.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001877939-25-000056
- JSON: https://secwatch.observer/filing/0001877939-25-000056.json
- Plain text: https://secwatch.observer/filing/0001877939-25-000056.txt

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