Castellum, Inc. (CTM) Insider Trading Disclosures

Castellum, Inc. (CTM) is a publicly traded company on the NYSE, categorized under SIC 8742 (Services-Management Consulting Services). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.

Ticker: CTM CIK: 1877939 Exchange: NYSE SIC 8742: Services-Management Consulting Services Fiscal Year End: 12/31 State: NV

Independent PCAOB Auditor

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Audit Firm RSM US LLP
Auditor SinceSince 12/31/2021 12:00:00 AM
Lead Engagement PartnerMichael Griggs
Audit LocationMcLean, Virginia, United States

Latest SEC EDGAR Filings

Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions
Form Filing Date Reporting Period Description Accession Number Actions
8-K 2026-10-13 2026-10-12 8-K 0001877939-26-000089 View SEC Doc Filr Page
4 2026-10-01 2026-10-01 FORM 4 0001877939-26-000087 View SEC Doc Filr Page
4 2026-10-01 2026-10-01 FORM 4 0001877939-26-000086 View SEC Doc Filr Page
4 2026-10-01 2026-10-01 FORM 4 0001877939-26-000085 View SEC Doc Filr Page
4 2026-10-01 2026-10-01 FORM 4 0001877939-26-000084 View SEC Doc Filr Page
4 2026-09-09 2026-09-09 FORM 4 0001877939-26-000079 View SEC Doc Filr Page
8-K 2026-09-09 2026-09-09 8-K 0001877939-26-000078 View SEC Doc Filr Page
8-K 2026-08-31 2026-08-31 8-K 0001877939-26-000075 View SEC Doc Filr Page
8-K 2026-08-07 2026-08-06 8-K 0001877939-26-000073 View SEC Doc Filr Page
10-Q 2026-08-06 2026-06-30 10-Q 0001877939-26-000070 View SEC Doc Filr Page
8-K 2026-07-31 2026-07-31 8-K 0001877939-26-000065 View SEC Doc Filr Page
4 2026-07-02 2026-07-01 FORM 4 0001877939-26-000061 View SEC Doc Filr Page
4 2026-07-02 2026-07-01 FORM 4 0001877939-26-000060 View SEC Doc Filr Page
4 2026-07-02 2026-07-01 FORM 4 0001877939-26-000059 View SEC Doc Filr Page
4 2026-07-02 2026-07-01 FORM 4 0001877939-26-000058 View SEC Doc Filr Page
8-K 2026-07-02 2026-07-01 8-K 0001877939-26-000057 View SEC Doc Filr Page
8-K 2026-06-24 2026-06-23 8-K 0001877939-26-000052 View SEC Doc Filr Page
8-K 2026-06-15 2026-06-15 8-K 0001877939-26-000050 View SEC Doc Filr Page
S-8 2026-06-01 — S-8 0001877939-26-000047 View SEC Doc Filr Page
8-K 2026-05-20 2026-05-19 8-K 0001877939-26-000044 View SEC Doc Filr Page
8-K 2026-05-18 2026-05-18 8-K 0001877939-26-000040 View SEC Doc Filr Page
8-K 2026-05-13 2026-05-08 8-K 0001877939-26-000036 View SEC Doc Filr Page
10-Q 2026-05-08 2026-03-31 10-Q 0001877939-26-000033 View SEC Doc Filr Page
8-K 2026-04-23 2026-04-23 8-K 0001877939-26-000028 View SEC Doc Filr Page
DEFA14A 2026-04-07 — DEFA14A 0001877939-26-000026 View SEC Doc Filr Page