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Castellum, Inc. (CTM)

SEC filings, insider trading & institutional ownership from EDGAR.

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Institutions
8
$3.6B held

Latest filings

10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR

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No filings are available yet.

Top holders

13F & 13D/G • latest quarter

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HolderFiledValue
Vanguard Capital ManagementAug 13, 2026$2.23B
GEODE CAPITAL MANAGEMENT, LLCAug 12, 2026$587.64M
STATE STREET CORPORATIONSep 22, 2026$218.78M
BlackRock, Inc.Aug 7, 2026$191.12M
UBS Group AGAug 13, 2026$150.45M

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Data as of Oct 17, 2026Source: SEC EDGAR.