Castellum (CTM)
Federal cyber, electronic-warfare, engineering, and mission-support contractor.
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Provides cybersecurity, electronic and information warfare, engineering, IT, and mission-support services to government customers. Revenue chiefly comes from cleared professionals executing U.S. government prime contracts and subcontracts.
Delivers federal technology services through five capability groups: Digital Solutions; C4ISR, Cyber & Space; Engineering Services; IT Services; and Mission Support. Work spans software and infrastructure modernization, cyber and electronic warfare, systems engineering, secure IT, logistics, intelligence, training, and information-operations support.
Serves primarily U.S. government agencies and departments through Corvus Consulting, SSI, and GTMR, with substantial Navy and NAVAIR exposure. Revenue comes chiefly from prime contracts and subcontracts that supply cleared personnel, technical expertise, program execution, and deliverables under cost-plus-fixed-fee, firm-fixed-price, and time-and-materials arrangements.
Execution depends on winning and retaining government contracts, appropriations and agency funding, teaming partners, and a workforce able to meet required security-clearance and technical qualifications. Its largest contracts account for more than half of revenue.
Company facts
No analyst consensus on record.
EPSReportedEstimate
RevenueReportedEstimate
Balance sheet, Jun 30, 2026Cash & short-term investments $16.9M · Total debt $958.9K · Total assets $41.8M · Shareholders' equity $35.9M
- Revenue
- $13.9M
- Operating income
- −$1.1M
- Net income
- −$1.0M
No dividends on record.
| Institutions | 8.34% | 7.91M shares | |
|---|---|---|---|
| 35 holders · as of Jun 30, 2026 | |||
| Insiders | 0.62% | 588.5K shares | |
| 1 holder · as of Sep 9, 2026 | |||
| Other | 91.04% | 86.28M shares | |
| remainder | |||
94.78M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
Top shareholders13F · 13D/G · Form 4
| Holder | Stake | Shares | Date |
|---|---|---|---|
Vanguard Capital Management LLCInstitution | 3.26% | 3.09M | as of Jun 30, 2026 |
Meridian Wealth Management, LLCInstitution | 0.91% | 863,200 | as of Jun 30, 2026 |
Geode Capital Management, LLCInstitution | 0.86% | 816,037 | as of Jun 30, 2026 |
Captrust Financial AdvisorsInstitution | 0.66% | 626,100 | as of Jun 30, 2026 |
Andrew MerrimanInsiderofficer: Chief Operating Officer | 0.62% | 588,531 | filed Sep 9, 2026 |
Insider tradesForm 4
| Date | Insider | Role | Shares | Avg price |
|---|---|---|---|---|
| Sep 9, 2026 | Andrew Merriman | officer: Chief Operating Officer | +50,000 | $0.6194 |
- CACI
Direct rival in electronic warfare, C4ISR integration, and secure software.
- Leidos
Large federal rival in C4ISR, cyber, mission software, and engineering.
- Booz Allen Hamilton
Federal cyber and digital-modernization rival with defense mission engineering.
- Northrop Grumman
Mission-systems rival in Navy EW, C4ISR, cyber, and systems engineering.
Compare
| Company | Price | Change | |||||
|---|---|---|---|---|---|---|---|
| Castellum | $0.6550 | +3.61% | $59.9M | — | 21.8 | 1.1 | −1.1% |
| CACI | $620.47 | −1.96% | $13.98B | 26.2 | 18.9 | 1.5 | +17.6% |
| Leidos | $123.85 | −3.42% | $16.13B | 12.0 | 10.3 | 0.9 | +7.2% |
| Booz Allen Hamilton | $76.23 | −1.49% | $9.31B | 12.1 | 12.2 | 0.8 | −4.2% |
| Northrop Grumman | $512.11 | −2.76% | $74.82B | 16.7 | 17.5 | 1.7 | +5.1% |
| Median | 14.4 | 14.9 | 1.2 | +6.1% |