Castellum, Inc. - CTM
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | No change | 3,473,227 | 3,136 | 0.0% | 0.0% | 1 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 3,081,257 | 1,817 | 0.0% | — | 2 | +3,081,257 | New | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 944,899 | 557 | 0.0% | 0.0% | 3 | +171,175 | 22.12% | Q1 2026 | May 15, 2026 |
| Meridian Wealth Management, LLC | History | Added to | 785,800 | 463 | 0.02% | 0.02% | 4 | +40,650 | 5.46% | Q1 2026 | May 06, 2026 |
| CAPTRUST FINANCIAL ADVISORS | History | New | 626,100 | 369 | 0.0% | — | 5 | +626,100 | New | Q1 2026 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 418,324 | 246 | 0.0% | — | 6 | +418,324 | New | Q1 2026 | May 08, 2026 |
| STATE STREET CORP | History | No change | 303,900 | 179 | 0.0% | 0.0% | 7 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| BlackRock, Inc. | History | No change | 265,486 | 156 | 0.0% | 0.0% | 8 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 236,774 | 139 | 0.0% | 0.0% | 9 | -107,068 | -31.14% | Q1 2026 | May 12, 2026 |
| Savvy Advisors, Inc. | History | No change | 221,800 | 130 | 0.0% | 0.01% | 10 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 181,902 | 107 | 0.0% | 0.0% | 11 | -28,709 | -13.63% | Q1 2026 | May 14, 2026 |
| UBS Group AG | History | Reduced | 153,529 | 90 | 0.0% | 0.0% | 12 | -2,001,628 | -92.88% | Q1 2026 | May 05, 2026 |
| SEI INVESTMENTS CO | History | Reduced | 121,574 | 71 | 0.0% | 0.0% | 13 | -211,497 | -63.5% | Q1 2026 | May 13, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 94,794 | 55 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Almanack Investment Partners, LLC. | History | No change | 50,000 | 29 | 0.0% | 0.01% | 15 | 0 | 0.0% | Q1 2026 | May 05, 2026 |
| HRT FINANCIAL LP | History | New | 33,836 | 19 | 0.0% | — | 16 | +33,836 | New | Q1 2026 | May 14, 2026 |
| Pathstone Holdings, LLC | History | No change | 31,179 | 18 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| Vanguard Global Advisers, LLC | History | New | 27,344 | 16 | 0.0% | — | 19 | +27,344 | New | Q1 2026 | May 08, 2026 |
| KESTRA PRIVATE WEALTH SERVICES, LLC | History | No change | 27,250 | 16 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q1 2026 | Apr 20, 2026 |
| Global Retirement Partners, LLC | History | No change | 16,439 | 14 | 0.0% | 0.0% | 20 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| CAPITAL ADVISORS INC/OK | History | New | 22,000 | 12 | 0.0% | — | 21 | +22,000 | New | Q1 2026 | Apr 27, 2026 |
| Ground Swell Capital, LLC | History | New | 21,090 | 12 | 0.02% | — | 22 | +21,090 | New | Q1 2026 | Apr 21, 2026 |
| Creative Planning | History | Added to | 20,320 | 11 | 0.0% | 0.0% | 23 | +320 | 1.6% | Q1 2026 | May 12, 2026 |
| TWO SIGMA SECURITIES, LLC | History | New | 15,222 | 8 | 0.0% | — | 25 | +15,222 | New | Q1 2026 | May 15, 2026 |
| Blue Trust, Inc. | History | No change | 14,724 | 8 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q1 2026 | Apr 20, 2026 |
| Inscription Capital, LLC | History | No change | 12,500 | 7 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q1 2026 | Apr 20, 2026 |
| Welch Group, LLC | History | No change | 10,000 | 5 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q1 2026 | Apr 21, 2026 |
| CITIGROUP INC | History | Reduced | 7,040 | 4 | 0.0% | 0.0% | 28 | -19,791 | -73.76% | Q1 2026 | May 11, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Added to | 6,366 | 3 | 0.0% | 0.0% | 29 | +200 | 3.24% | Q1 2026 | May 15, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Closed out | 0 | 0 | — | 0.29% | — | -2,114,029 | -100.0% | Q1 2026 | May 11, 2026 |
| Legato Capital Management LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -680,945 | -100.0% | Q1 2026 | May 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -353,526 | -100.0% | Q1 2026 | May 15, 2026 |
| Quadrature Capital Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -217,471 | -100.0% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -102,556 | -100.0% | Q1 2026 | May 15, 2026 |
| Bank of New York Mellon Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -100,002 | -100.0% | Q1 2026 | May 05, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -75,384 | -100.0% | Q1 2026 | May 15, 2026 |
| Inspire Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -41,700 | -100.0% | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -34,668 | -100.0% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -26,781 | -100.0% | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -22,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Centiva Capital, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -19,409 | -100.0% | Q1 2026 | May 14, 2026 |
| PKS Advisory Services, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -18,931 | -100.0% | Q1 2026 | May 13, 2026 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -16,804 | -100.0% | Q1 2026 | May 14, 2026 |
| Revisor Wealth Management LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,922 | -100.0% | Q1 2026 | Apr 27, 2026 |
| Independent Advisor Alliance | History | Closed out | 0 | 0 | — | 0.0% | — | -12,835 | -100.0% | Q1 2026 | May 12, 2026 |
| Strengthening Families & Communities, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -3,000 | -100.0% | Q1 2026 | May 11, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | 0.0% | — | -2,973 | -100.0% | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | — | — | -866 | -100.0% | Q1 2026 | May 15, 2026 |