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CASTELLUM INC (CTM)

Institutional ownership, SEC filings and insider activity

Sector: Industry · SEC CIK 0001877939 · EDGAR filings · Updated 2026-07-02

CASTELLUM INC (CTM) has reported institutional ownership of 8.2%, with 27 institutional managers holding positions valued at $4.56M per the latest 13F reporting period. SEC filings include an active substantial-doubt (going concern) disclosure per the filings.

Institutional ownership
8.2%
Institutional managers
27
Reported 13F value
$4.56M
Insider activity
40 trans.
−$3.52M net selling
Data flags
1 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, CASTELLUM INC has 27 institutional holders and institutional ownership of 8.2%.

Insider activity

Insiders reported 40 transactions (4 buys, 31 sells) across 7 reporting insiders, with a net reported value of −$3.52M.

Data flags from SEC filings

Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2023-11-14 (recurring since 2023-11-14) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-02.