Castellum, Inc.
CTM- Exchange
- NYSE
- Industry
- Services-Management Consulting Services
- SEC CIK
- 0001877939
In the last 90 days, Castellum, Inc. insiders filed 5 open-market purchases and 0 sales; 35 institutions reported holding it in 13F filings for Q2 2026, worth $5.69M in total; no superinvestor holds it.
Q3 2025 vs. Q2 2025
How the institutions holding Castellum, Inc. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 33 | 42 | +9 |
| Shares | 6.95M | 8.51M | +1.55M (+22.4%) |
| Value | $7.30M | $9.27M | +$1.97M (+27.0%) |
New holders (14)
Institutions that held Castellum, Inc. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Goldman Sachs Group Inc | 368,632 | $401.8K | 0.00% |
| Centiva Capital, LP | 122,228 | $133.2K | 0.01% |
| Bridgeway Capital Management, LLC | 94,794 | $103.3K | 0.00% |
| Morgan Stanley | 73,714 | $80.3K | 0.00% |
| Two Sigma Securities, LLC | 25,739 | $28.1K | 0.00% |
| Revisor Wealth Management LLC | 17,941 | $18.8K | 0.01% |
| Independent Advisor Alliance | 15,941 | $17.4K | 0.00% |
| TCFG Wealth Management, LLC | 15,596 | $17.0K | 0.01% |
| GK Wealth Management LLC | 15,204 | $16.6K | 0.01% |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 12,630 | $13.8K | 0.00% |
| Tower Research Capital LLC (TRC) | 9,034 | $9.85K | 0.00% |
| Jones Financial Companies LLLP | 500 | $570 | 0.00% |
| Point72 (DIFC) Ltd | 309 | $337 | 0.00% |
| JPMorgan Chase & Co | 31 | $34 | 0.00% |
Sold out (5)
Institutions that held Castellum, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.
| Institution | Shares, Q2 2025 | Value, Q2 2025 |
|---|---|---|
| Virtu Financial LLC | 105,126 | $110.0K |
| HRT Financial LP | 50,395 | $52.0K |
| Squarepoint Ops LLC | 23,940 | $25.1K |
| Sunbelt Securities, Inc. | 3,000 | $6.00K |
| Strengthening Families & Communities, LLC | 2,700 | $2.86K |