Listed

Castellum, Inc.

CTMNYSECIK 1877939IndustrialsFiscal year ends Dec 31

Reports and events: 126 filings

Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.

What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.

Castellum, Inc., Reports and events
FiledFormWhat it isAccession number
2026-10-1316:14 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000089
2026-09-0916:02 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000078
2026-08-3116:03 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000075
2026-08-0716:05 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001877939-26-000073
2026-08-0616:09 ET10-QQuarterly reportPeriod 2026-06-300001877939-26-000070
2026-07-3116:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000065
2026-07-0216:02 ET8-K1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001877939-26-000057
2026-06-2416:02 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000052
2026-06-1516:15 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000050
2026-05-2016:01 ET8-K5.07 Shareholder vote results0001877939-26-000044
2026-05-1806:55 ET8-K7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001877939-26-000040
2026-05-1306:31 ET8-K2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001877939-26-000036
2026-05-0816:05 ET10-QQuarterly reportPeriod 2026-03-310001877939-26-000033
2026-04-2316:05 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000028
2026-04-0716:01 ETDEF 14AProxy statementPeriod 2026-04-070001877939-26-000025
2026-03-0916:04 ET10-KAnnual reportPeriod 2025-12-310001877939-26-000016
2026-03-0516:02 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001877939-26-000012
2026-02-1716:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000009
2026-01-0816:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-26-000007
2026-01-0216:01 ET8-K5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001877939-26-000004
2025-12-0916:01 ET8-K5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000126
2025-11-1316:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000124
2025-11-0716:05 ET10-QQuarterly reportPeriod 2025-09-300001877939-25-000115
2025-11-0716:01 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001877939-25-000114
2025-10-3116:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000110
2025-10-2116:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000108
2025-10-1416:03 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000106
2025-08-1916:00 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000089
2025-08-1506:33 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000087
2025-08-1216:00 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000085
2025-08-0816:18 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001877939-25-000083
2025-08-0816:06 ET10-QQuarterly reportPeriod 2025-06-300001877939-25-000082
2025-08-0516:01 ET8-K1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000077
2025-07-1416:00 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000075
2025-07-0816:00 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000072
2025-06-2416:11 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000070
2025-06-1706:31 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000068
2025-06-1316:01 ET8-K1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000062
2025-06-0606:46 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000060
2025-06-0216:03 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000058
2025-05-2816:01 ET8-K5.07 Shareholder vote results; 9.01 Financial statements and exhibits0001877939-25-000056
2025-05-2716:07 ET8-K7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001877939-25-000054
2025-05-0916:08 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001877939-25-000051
2025-05-0916:05 ET10-QQuarterly reportPeriod 2025-03-310001877939-25-000050
2025-04-2116:02 ET8-K1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000044
2025-04-1516:07 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000042
2025-04-1116:04 ETDEF 14AProxy statementPeriod 2025-05-280001877939-25-000037
2025-04-1016:02 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000034
2025-04-0416:05 ET8-K1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001877939-25-000030
2025-03-1916:01 ET8-K8.01 Other events; 9.01 Financial statements and exhibits0001877939-25-000025

Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 06:56 ET. Listed shows no prices and gives no investment advice.