Castellum, Inc. · AMEX:CTM
Castellum, Inc. shareholders
As of Jun 30, 2026, 33 institutions reported holding Castellum, Inc., 8.3% of its shares. Largest: Vanguard, Meridian Wealth Management, LLC and Geode Capital. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Castellum, Inc. | Change | Filed |
|---|---|---|---|---|
| Vanguard | 3.61M | 3.8% | +86,904 | Aug 13, 2026 |
| Meridian Wealth Management, LLC | 863K | 0.91% | +77,400 | Aug 5, 2026 |
| Geode Capital | 816K | 0.86% | −129K | Aug 12, 2026 |
| Captrust Financial Advisors | 626K | 0.66% | no change | Aug 13, 2026 |
| State Street | 304K | 0.32% | no change | Aug 7, 2026 |
| BlackRock | 265K | 0.28% | no change | Aug 7, 2026 |
| Savvy Advisors, Inc. | 220K | 0.23% | −1,500 | Aug 3, 2026 |
| UBS | 209K | 0.22% | +55,429 | Aug 13, 2026 |
| Northern Trust | 171K | 0.18% | −10,482 | Aug 13, 2026 |
| Virtu Financial LLC | 168K | 0.18% | new | Aug 13, 2026 |