Companies: 10,795·Total market cap: $144.5T
Castellum, Inc.

Castellum, Inc.

CTMAMEXTechnology● Active
$0.71
+$0.01(+0.83%)
Market Cap$67596075
P/E Ratio
52W High$1.56
52W Low$0.48
SEC Filings

Castellum, Inc. (CTM) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001877939 · CTM · AMEX · as of Jun 8, 2026

Filing snapshot

291
Total Filings
S-8
Latest Form
2026-06-01
Most Recent
2022
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001877939 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-09
Fiscal Year End
Mar 9, 2026
Accession No.
0001877939-26-000016
Primary Document
ctm-20251231.htm
Source: data.sec.gov · CIK 0001877939 · Accession 0001877939-26-000016

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-08
8-KCurrent Report
8-K
2026-05-20Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
S-8Employee Stock Plan Registration
S-8
2026-06-01
View
8-KCurrent Report
8-K
2026-05-20
View
8-KCurrent Report
8-K
2026-05-18
View
8-KCurrent Report
8-K
2026-05-13
View
10-QQuarterly Report
10-Q
2026-05-08
View
8-KCurrent Report
8-K
2026-04-23
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-07
View
DEF 14AProxy Statement
DEF 14A
2026-04-07
View
10-KAnnual Report
10-K
2026-03-09
View
8-KCurrent Report
8-K
2026-03-05
View
8-KCurrent Report
8-K
2026-02-17
View
8-KCurrent Report
8-K
2026-01-08
View
3Initial Statement of Beneficial Ownership
FORM 3
2026-01-02
View
8-KCurrent Report
8-K
2026-01-02
View
8-KCurrent Report
8-K
2025-12-09
View
Showing 1–15 of 183 filingsForm 4 / 144 hidden· 291 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001877939  |  Exchange: AMEX · Technology

Castellum, Inc. (AMEX: CTM) has submitted 291 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2022. As a Technology sector company with CIK 0001877939, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Castellum, Inc.'s most comprehensive regulatory disclosure. The most recent Castellum, Inc. 10-K was filed on 2026-03-09 for fiscal year ending 2026. Historical CTM 10-K annual reports are available from 2021 through 2026.

Investors researching Castellum, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

CTM SEC Filings · 8 questions

Castellum, Inc. (CTM) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 291 filings and access original documents at no cost. Castellum, Inc.'s CIK is 0001877939.

CTM SEC filingsCastellum, Inc. SEC documentsfind CTM 10-K