// company-profile
Castellum, Inc.
CTMExchangeNYSESectorServices-Management Consulting ServicesInc.NVFilings53Insiders11
// api This Castellum, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Castellum, Inc. insiders bought $11K across 6 transactions with no open-market sales.
- Most active insider: Ives Glen R with 2 transactions totaling $8K.
- Largest single purchase: $7K by Ives Glen R on Mar 26, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Castellum, Inc. as of 2026-03-31
Total reported AUM
$4.3M
QoQ change
-52.2%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$1.8M
3.1M shares
#2
Meridian Wealth Management, LLC
CIK 1697300
$463,229
786K shares
#3
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
$462,217
784K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 31, 2026 | Merriman Andrew | CTM | Award | 1,329 | $0.45 | $1K |
| Mar 31, 2026 | MARTIN TAMMY L | CTM | Award | 1,329 | $0.45 | $1K |
| Mar 31, 2026 | Bell David T | CTM | Award | 1,329 | $0.45 | $1K |
| Mar 27, 2026 | Ives Glen R | CTM | Purchase | 2,000 | $0.62 | $1K |
| Mar 27, 2026 | Merriman Andrew | CTM | Purchase | 2,000 | $0.64 | $1K |
45 more transactions hidden
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