Who Owns CASTELLUM INC (CTM)? -- Institutional Holders (2026-06-30)
38 institutions reported holding $5.7M of CASTELLUM INC (CTM) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($2.6M), Meridian Wealth Management, LLC ($621,418), GEODE CAPITAL MANAGEMENT, LLC ($587,637), CAPTRUST FINANCIAL ADVISORS ($450,729), STATE STREET CORP ($218,778). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | VANGUARD GROUP INC | $2.6M | 3.6M | Added |
| 2 | Meridian Wealth Management, LLC | $621,418 | 863,200 | Added |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $587,637 | 816,037 | Trimmed |
| 4 | CAPTRUST FINANCIAL ADVISORS | $450,729 | 626,100 | Hold |
| 5 | STATE STREET CORP | $218,778 | 303,900 | Hold |
| 6 | BlackRock, Inc. | $191,123 | 265,486 | Hold |
| 7 | Savvy Advisors, Inc. | $158,594 | 220,300 | Trimmed |
| 8 | UBS Group AG | $150,450 | 208,958 | Added |
| 9 | NORTHERN TRUST CORP | $123,405 | 171,420 | Trimmed |
| 10 | Virtu Financial LLC | $121,000 | 168,401 | New |
| 11 | JANE STREET GROUP, LLC | $92,918 | 129,071 | Trimmed |
| 12 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $68,242 | 94,794 | Hold |
| 13 | HUB Investment Partners, LLC | $41,332 | 57,414 | New |
| 14 | Creative Planning | $35,995 | 50,000 | Added |
| 15 | Almanack Investment Partners, LLC. | $35,995 | 50,000 | Hold |
| 16 | TWO SIGMA SECURITIES, LLC | $29,178 | 40,530 | Added |
| 17 | ARQ WEALTH ADVISORS, LLC | $22,750 | 35,000 | New |
| 18 | Pathstone Holdings, LLC | $22,446 | 31,179 | Hold |
| 19 | KESTRA PRIVATE WEALTH SERVICES, LLC | $19,617 | 27,250 | Hold |
| 20 | CAPITAL ADVISORS INC/OK | $15,838 | 22,000 | Hold |
| 21 | XTX Topco Ltd | $15,773 | 21,910 | New |
| 22 | ACT Advisors, LLC. | $15,171 | 21,074 | New |
| 23 | PKS Advisory Services, LLC | $13,628 | 18,931 | New |
| 24 | Blue Trust, Inc. | $10,600 | 14,724 | Hold |
| 25 | Inscription Capital, LLC | $8,999 | 12,500 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30