CASTELLUM INC (CTM)
Institutional ownership reported to the SEC as of Q2 2026, across 15 quarters.
Institutions report 8,213,111 shares against 94,781,286 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | $2.2M | 3,093,768 | 0.00% | 2q | HELD |
| Meridian Wealth Management, LLC | $621.4K | 863,200 | 0.02% | 9q | +9.8%+$55.7K |
| GEODE CAPITAL MANAGEMENT, LLC | $587.6K | 816,037 | 0.00% | 15q | -13.6%-$92.8K |
| CAPTRUST FINANCIAL ADVISORS | $450.7K | 626,100 | 0.00% | 2q | HELD |
| STATE STREET CORP | $437.6K | 607,800 | 0.00% | 14q | +100.0%+$218.8K |
| VANGUARD FIDUCIARY TRUST CO | $354.8K | 492,717 | 0.00% | 2q | +17.8%+$53.6K |
| BlackRock, Inc. | $191.1K | 265,486 | 0.00% | 6q | HELD |
| Savvy Advisors, Inc. | $158.6K | 220,300 | 0.00% | 5q | -0.7%-$1.1K |
| UBS Group AG | $150.4K | 208,958 | 0.00% | 7q | +36.1%+$39.9K |
| NORTHERN TRUST CORP | $123.4K | 171,420 | 0.00% | 15q | -5.8%-$7.5K |
| Virtu Financial LLC | $121.0K | 168,401 | 0.00% | new | NEW |
| JANE STREET GROUP, LLC | $92.9K | 129,071 | 0.00% | 5q | -45.5%-$77.5K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $68.2K | 94,794 | 0.00% | 4q | HELD |
| HUB Investment Partners, LLC | $41.3K | 57,414 | 0.00% | new | NEW |
| Creative Planning | $36.0K | 50,000 | 0.00% | 6q | +146.1%+$21.4K |
| Almanack Investment Partners, LLC. | $36.0K | 50,000 | 0.00% | 15q | HELD |
| TWO SIGMA SECURITIES, LLC | $29.2K | 40,530 | 0.00% | 2q | +166.3%+$18.2K |
| ARQ WEALTH ADVISORS, LLC | $22.8K | 35,000 | 0.00% | new | NEW |
| Pathstone Holdings, LLC | $22.4K | 31,179 | 0.00% | 5q | HELD |
| Vanguard Global Advisers, LLC | $19.7K | 27,344 | 0.00% | 2q | HELD |
| KESTRA PRIVATE WEALTH SERVICES, LLC | $19.6K | 27,250 | 0.00% | 15q | HELD |
| CAPITAL ADVISORS INC/OK | $15.8K | 22,000 | 0.00% | 2q | HELD |
| XTX Topco Ltd | $15.8K | 21,910 | 0.00% | new | NEW |
| ACT Advisors, LLC. | $15.2K | 21,074 | 0.01% | new | NEW |
| PKS Advisory Services, LLC | $13.6K | 18,931 | 0.00% | new | NEW |
| Blue Trust, Inc. | $10.6K | 14,724 | 0.00% | 14q | HELD |
| Inscription Capital, LLC | $9.0K | 12,500 | 0.00% | 10q | HELD |
| Welch Group, LLC | $7.2K | 10,000 | 0.00% | 3q | HELD |
| JONES FINANCIAL COMPANIES LLLP | $4.5K | 6,366 | 0.00% | 4q | HELD |
| Tower Research Capital LLC (TRC) | $4.2K | 5,872 | 0.00% | new | NEW |
| Cape Investment Advisory, Inc. | $1.4K | 2,000 | 0.00% | new | NEW |
| TD Waterhouse Canada Inc. | $361 | 500 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $154 | 215 | 0.00% | new | NEW |
| HARBOUR INVESTMENTS, INC. | $108 | 150 | 0.00% | new | NEW |
| Clearstead Advisors, LLC | $72 | 100 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 35 | $5.9M | 8,213,111 | 12 | 6 | 4 | 0.0% |
| Q1 2026 | 27 | $4.6M | 7,735,010 | 5 | 4 | 5 | 0.0% |
| Q4 2025 | 40 | $11.7M | 12,992,653 | 8 | 12 | 11 | 0.0% |
| Q3 2025 | 42 | $9.3M | 8,505,682 | 14 | 16 | 3 | 0.0% |
| Q2 2025 | 33 | $7.3M | 6,951,555 | 14 | 7 | 2 | 0.0% |
| Q1 2025 | 25 | $3.3M | 3,310,952 | 10 | 6 | 5 | 0.0% |
| Q4 2024 | 20 | $9.5M | 4,770,431 | 6 | 2 | 4 | 0.0% |
| Q3 2024 | 17 | $265.6K | 1,517,838 | 2 | 4 | 4 | 0.0% |
| Q2 2024 | 20 | $965.6K | 5,190,346 | 4 | 5 | 5 | 0.0% |
| Q1 2024 | 19 | $1.6M | 6,054,553 | 2 | 6 | 2 | 0.0% |
| Q4 2023 | 19 | $534.7K | 1,798,454 | 4 | 5 | 2 | 0.0% |
| Q3 2023 | 17 | $262.2K | 1,123,518 | 4 | 4 | 3 | 0.0% |
| Q2 2023 | 17 | $565.7K | 1,114,929 | 5 | 2 | 1 | 0.0% |
| Q1 2023 | 14 | $989.3K | 904,705 | 5 | 4 | 2 | 0.0% |
| Q4 2022 | 12 | $1.0M | 808,984 | 12 | 0 | 0 | 0.0% |