2m 2m 2m 2m 2m 2m 2m
CASTELLUM (CTM)
NYSE
$0.50+$0.05 (+10.42%)
Price as of Nov 11, 2026 7:53 PM EST- $42.8MMarket Cap
- -62.18%1-Year Change
- Information Technology ServicesIndustry
CASTELLUM (CTM)
$0.50+$0.05 (+10.42%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD GROUP INC | 3.66% | 3.5M | +2.2M (+63.21%) | Dec 31, 2025 |
VANGUARD CAPITAL MANAGEMENT LLC | 3.26% | 3.1M | +12,511 (+0.40%) | Jun 30, 2026 |
N/A | 3.25% | 3.1M | +3.1M (+100.00%) | Mar 31, 2026 |
MERIDIAN WEALTH MANAGEMENT, LLC | 0.96% | 907,100 | +43,900 (+4.84%) | Sep 30, 2026 |
GEODE CAPITAL MANAGEMENT, LLC | 0.85% | 804,499 | -11,538 (-1.43%) | Sep 30, 2026 |
CAPTRUST FINANCIAL ADVISORS | 0.66% | 626,100 | 0 (0.00%) | Jun 30, 2026 |
VANGUARD FIDUCIARY TRUST CO | 0.52% | 492,717 | +74,393 (+15.10%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 3.17% | 3.0M | +48,154 (+1.60%) | Jun 30, 2026 |
JOHCM Funds Trust | 1.06% | 1.0M | 0 (0.00%) | Jun 30, 2026 |
FIDELITY CONCORD STREET TRUST | 0.74% | 704,960 | +9,828 (+1.39%) | Aug 31, 2026 |
BRIDGEWAY FUNDS INC | 0.10% | 94,794 | 0 (0.00%) | Jun 30, 2026 |
VANGUARD INSTITUTIONAL INDEX FUNDS | 0.05% | 48,544 | 0 (0.00%) | Jun 30, 2026 |
VANGUARD VALLEY FORGE FUNDS | 0.04% | 37,084 | -35,643 (-96.11%) | Jun 30, 2026 |
Current Ownership Distribution
- Institutions50.1M (48.02%)
- Mutual Funds37.6M (36.02%)
- Insiders16.7M (15.96%)
- Other0 (0.00%)
Insider Transactions
- 15.96% (16.7M)Current InsiderOwnership (%, shares)
- 4Number of InsiderBuying (last 12 months)
- $523,099.24Amount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Merriman Andrew Chief Operating Officer | Buy | Nov 10, 2026 | $21,855.00 | 50,000 | $0.44 | 639,927 |
Bell David T Chief Financial Officer | Buy | Oct 01, 2026 | $747.14 | 1,396 | $0.54 | 18,651 |
MARTIN TAMMY L General Counsel and Secretary | Buy | Oct 01, 2026 | $747.14 | 1,396 | $0.54 | 16,427 |
Ives Glen R President | Buy | Oct 01, 2026 | $909.84 | 1,700 | $0.54 | 202,578 |
Ives Glen R President | Award | Jul 01, 2026 | $0.00 | 773,630 | $0.00 | 773,630 |
MARTIN TAMMY L General Counsel and Secretary | Buy | Jul 01, 2026 | $735.62 | 1,202 | $0.61 | 15,031 |
Bell David T Chief Financial Officer | Buy | Jul 01, 2026 | $735.62 | 1,202 | $0.61 | 17,255 |
Ives Glen R President | Buy | Jul 01, 2026 | $772.34 | 1,262 | $0.61 | 200,878 |