Delisting riskPopularity #4,128
Castellum (CTM)
Federal cyber, electronic-warfare, engineering, and mission-support contractor.
$0.6385
vs last close−0.00 (−0.23%)
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13F · 13D/G · Form 4
| Institutions | 8.34% | 7.91M shares | |
|---|---|---|---|
| 35 holders · as of Jun 30, 2026 | |||
| Insiders | 0.62% | 588.5K shares | |
| 1 holder · as of Sep 9, 2026 | |||
| Other | 91.04% | 86.28M shares | |
| remainder | |||
94.78M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
35 holders · 7.91M shares · 12 new positions · 18 increased · 4 reduced · 4 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Vanguard Capital Management LLC | 3.09M | 3.26% | +12.5K | Aug 13, 2026 |
| Meridian Wealth Management, LLC | 863.2K | 0.91% | +77.4K | Aug 5, 2026 |
| Geode Capital Management, LLC | 816.0K | 0.86% | −128.9K | Aug 12, 2026 |
| Captrust Financial Advisors | 626.1K | 0.66% | 0 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | 492.7K | 0.52% | +74.4K | Aug 13, 2026 |
| State Street Corp | 303.9K | 0.32% | 0 | Aug 7, 2026 |
| BlackRock, Inc. | 265.5K | 0.28% | 0 | Aug 7, 2026 |
| Savvy Advisors, Inc. | 220.3K | 0.23% | −1.5K | Aug 3, 2026 |
13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 9, 2026 | Andrew Merrimanofficer: Chief Operating Officer | Purchase · 2 lots | 50,000 | $0.6194 | 588,531 |
House and Senate disclosures
Not reported.