CastellumCTM
13F holders, Q2 2026 (June 30)35holders +8
12new positions
4sold out
$0.72avg. 13F price*
At the end of Q2 2026, 35 institutions reported holding Castellum Inc. (CTM) in their 13F filings, up 8 from Q1 2026. 12 opened new positions and 4 sold out. The largest holders were Vanguard Capital Management LLC ($2.2M), Meridian Wealth Management, LLC ($621K) and Geode Capital Management, LLC ($588K).
- Company
- Castellum Inc.
- CUSIP
- 14838T204
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 12 | $236K |
| Exits | 4 | $107K |
All 13F filers, Q1 2026 → Q2 2026: 606,288 shares bought and 432,087 shares sold, net +174,201 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 35 holders
| Vanguard Capital Management LLC | 0.00% | Add +0.4% | 3,093,768 | $2.2M |
| Meridian Wealth Management, LLC | 0.02% | Add +9.8% | 863,200 | $621K |
| Geode Capital Management, LLC | 0.00% | Reduce -13.6% | 816,037 | $588K |
| Captrust Financial Advisors | 0.00% | No change | 626,100 | $451K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +17.8% | 492,717 | $355K |
| State Street Corp. | 0.00% | No change | 303,900 | $219K |
| BlackRock, Inc. | 0.00% | No change | 265,486 | $191K |
| Savvy Advisors, Inc. | 0.00% | Reduce -0.7% | 220,300 | $159K |
| UBS Group AG | 0.00% | Add +36.1% | 208,958 | $150K |
| Northern Trust Corp. | 0.00% | Reduce -5.8% | 171,420 | $123K |
| Virtu Financial LLC | 0.00% | New | 168,401 | $121K |
| Jane Street Group, LLC | 0.00% | Reduce -45.5% | 129,071 | $93K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 94,794 | $68K |
| HUB Investment Partners, LLC | 0.00% | New | 57,414 | $41K |
| Almanack Investment Partners, LLC. | 0.00% | No change | 50,000 | $36K |
| Creative Planning | 0.00% | Add +146.1% | 50,000 | $36K |
| Two Sigma Securities, LLC | 0.00% | Add +166.3% | 40,530 | $29K |
| Arq Wealth Advisors, LLC | 0.00% | New | 35,000 | $23K |
| Pathstone Holdings, LLC | 0.00% | No change | 31,179 | $22K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 27,344 | $20K |
| Kestra Private Wealth Services, LLC | 0.00% | No change | 27,250 | $20K |
| Capital Advisors Inc. | 0.00% | No change | 22,000 | $16K |
| XTX Topco Ltd | 0.00% | New | 21,910 | $16K |
| ACT Advisors, LLC. | 0.01% | New | 21,074 | $15K |
| PKS Advisory Services, LLC | 0.00% | New | 18,931 | $14K |
| Blue Trust, Inc. | 0.00% | No change | 14,724 | $11K |
| Inscription Capital, LLC | 0.00% | No change | 12,500 | $9K |
| Welch Group, LLC | 0.00% | No change | 10,000 | $7K |
| Jones Financial Companies LLLP | 0.00% | No change | 6,366 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 5,872 | $4K |
| Cape Investment Advisory, Inc. | 0.00% | New | 2,000 | $1K |
| TD Waterhouse Canada Inc. | 0.00% | New | 500 | $361 |
| Osaic Holdings, Inc. | 0.00% | New | 215 | $154 |
| Harbour Investments, Inc. | 0.00% | New | 150 | $108 |
| Clearstead Advisors, LLC | 0.00% | New | 100 | $72 |
"% of holder's portfolio" is CTM's weight in each manager's 13F, not the share of Castellum Inc. the manager owns.