Castellum, Inc.

Symbol
CTM on NYSE
Business address
1934 Old Gallows Road, Suite 350, Vienna, VA, 22182
State of incorporation
NV
Fiscal year end
31 December
Get insider transactions for this issuer
Castellum, Inc. has filed 266 SEC EDGAR filings since 19 Oct 2021

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 17 Dec 2025 15 Dec 2025
4 Open Document Open Filing FORM 4 12 Dec 2025 10 Dec 2025
8-K Open Document | Data Open Filing 8-K 09 Dec 2025 08 Dec 2025 001-41526
4 Open Document Open Filing FORM 4 02 Dec 2025 28 Nov 2025
4 Open Document Open Filing FORM 4 18 Nov 2025 14 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
8-K Open Document | Data Open Filing 8-K 13 Nov 2025 13 Nov 2025 001-41526
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
4 Open Document Open Filing FORM 4 13 Nov 2025 11 Nov 2025
144 Open Document Open Filing 10 Nov 2025 001-41526
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2025 30 Sep 2025 001-41526
8-K Open Document | Data Open Filing 8-K 07 Nov 2025 07 Nov 2025 001-41526
8-K Open Document | Data Open Filing 8-K 31 Oct 2025 31 Oct 2025 001-41526
8-K Open Document | Data Open Filing 8-K 21 Oct 2025 20 Oct 2025 001-41526
8-K Open Document | Data Open Filing 8-K 14 Oct 2025 14 Oct 2025 001-41526
S-8 Open Document | Data Open Filing S-8 17 Sep 2025 333-290332
S-8 Open Document | Data Open Filing S-8 17 Sep 2025 333-290331
4 Open Document Open Filing FORM 4 17 Sep 2025 15 Sep 2025
4 Open Document Open Filing FORM 4 12 Sep 2025 10 Sep 2025
4 Open Document Open Filing FORM 4 09 Sep 2025 05 Sep 2025
4 Open Document Open Filing FORM 4 03 Sep 2025 03 Sep 2025
4 Open Document Open Filing FORM 4 28 Aug 2025 27 Aug 2025
4 Open Document Open Filing FORM 4 26 Aug 2025 22 Aug 2025
4 Open Document Open Filing FORM 4 21 Aug 2025 20 Aug 2025
4 Open Document Open Filing FORM 4 20 Aug 2025 18 Aug 2025
8-K Open Document | Data Open Filing 8-K 19 Aug 2025 19 Aug 2025 001-41526
144 Open Document Open Filing 18 Aug 2025 001-41526
144 Open Document Open Filing 18 Aug 2025 001-41526
8-K Open Document | Data Open Filing 8-K 15 Aug 2025 14 Aug 2025 001-41526
8-K Open Document | Data Open Filing 8-K 12 Aug 2025 12 Aug 2025 001-41526
8-K Open Document | Data Open Filing 8-K 08 Aug 2025 08 Aug 2025 001-41526
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2025 30 Jun 2025 001-41526
8-K Open Document | Data Open Filing 8-K 05 Aug 2025 04 Aug 2025 001-41526
8-K Open Document | Data Open Filing 8-K 14 Jul 2025 14 Jul 2025 001-41526
8-K Open Document | Data Open Filing 8-K 08 Jul 2025 08 Jul 2025 001-41526
8-K Open Document | Data Open Filing 8-K 24 Jun 2025 24 Jun 2025 001-41526
8-K Open Document | Data Open Filing 8-K 17 Jun 2025 16 Jun 2025 001-41526
8-K Open Document | Data Open Filing 8-K 13 Jun 2025 12 Jun 2025 001-41526
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT 12 Jun 2025 333-284205
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT 11 Jun 2025 333-284205
8-K Open Document | Data Open Filing 8-K 06 Jun 2025 05 Jun 2025 001-41526
8-K Open Document | Data Open Filing 8-K 02 Jun 2025 02 Jun 2025 001-41526
8-K Open Document | Data Open Filing 8-K 28 May 2025 28 May 2025 001-41526
8-K Open Document | Data Open Filing 8-K 27 May 2025 27 May 2025 001-41526
4 Open Document Open Filing FORM 4 20 May 2025 19 May 2025
4 Open Document Open Filing FORM 4 20 May 2025 19 May 2025
144 Open Document Open Filing 19 May 2025 001-41526
8-K Open Document | Data Open Filing 8-K 09 May 2025 09 May 2025 001-41526
10-Q Open Document | Data Open Filing 10-Q 09 May 2025 31 Mar 2025 001-41526
8-K Open Document | Data Open Filing 8-K 21 Apr 2025 17 Apr 2025 001-41526
8-K Open Document | Data Open Filing 8-K 15 Apr 2025 15 Apr 2025 001-41526
DEFA14A Open Document Open Filing DEFA14A 11 Apr 2025 001-41526
DEF 14A Open Document Open Filing DEF 14A 11 Apr 2025 28 May 2025 001-41526
8-K Open Document | Data Open Filing 8-K 10 Apr 2025 10 Apr 2025 001-41526
8-K Open Document | Data Open Filing 8-K 04 Apr 2025 31 Mar 2025 001-41526
8-K Open Document | Data Open Filing 8-K 19 Mar 2025 19 Mar 2025 001-41526
8-K Open Document | Data Open Filing 8-K 18 Mar 2025 14 Mar 2025 001-41526
424B5 Open Document Open Filing 424B5 17 Mar 2025 333-284205
424B5 Open Document Open Filing 424B5 14 Mar 2025 333-284205
8-K Open Document | Data Open Filing 8-K 12 Mar 2025 12 Mar 2025 001-41526
10-K Open Document | Data Open Filing 10-K 11 Mar 2025 31 Dec 2024 001-41526
4 Open Document Open Filing FORM 4 07 Mar 2025 05 Mar 2025
4 Open Document Open Filing FORM 4 06 Mar 2025 05 Mar 2025
144 Open Document Open Filing 04 Mar 2025 001-41526
144 Open Document Open Filing 04 Mar 2025 001-41526
8-K Open Document | Data Open Filing 8-K 28 Feb 2025 27 Feb 2025 001-41526
8-K Open Document | Data Open Filing 8-K 25 Feb 2025 25 Feb 2025 001-41526
5 Open Document Open Filing FORM 5 14 Feb 2025 31 Dec 2024
EFFECT Open Document Open Filing 24 Jan 2025 333-284205
4 Open Document Open Filing FORM 4 24 Jan 2025 22 Jan 2025
4 Open Document Open Filing FORM 4 24 Jan 2025 22 Jan 2025
CORRESP Open Document Open Filing 23 Jan 2025
S-3/A Open Document Open Filing S-3/A 22 Jan 2025 333-284205
UPLOAD Open Document Open Filing 21 Jan 2025 333-284205
8-K Open Document | Data Open Filing 8-K 14 Jan 2025 14 Jan 2025 001-41526
S-3 Open Document Open Filing S-3 10 Jan 2025 333-284205
8-K Open Document | Data Open Filing 8-K 08 Jan 2025 08 Jan 2025 001-41526
4 Open Document Open Filing FORM 4 03 Jan 2025 02 Jan 2025
424B5 Open Document Open Filing 424B5 30 Dec 2024 333-275840
8-K Open Document | Data Open Filing 8-K 30 Dec 2024 26 Dec 2024 001-41526
424B5 Open Document Open Filing 424B5 27 Dec 2024 333-275840
8-K Open Document | Data Open Filing 8-K 26 Dec 2024 22 Dec 2024 001-41526
424B5 Open Document Open Filing 424B5 23 Dec 2024 333-275840
10-Q Open Document | Data Open Filing 10-Q 13 Nov 2024 30 Sep 2024 001-41526
8-K Open Document | Data Open Filing 8-K 04 Nov 2024 04 Nov 2024 001-41526
8-K Open Document | Data Open Filing 8-K 24 Sep 2024 24 Sep 2024 001-41526
4 Open Document Open Filing FORM 4 05 Sep 2024 04 Sep 2024
3 Open Document Open Filing FORM 3 04 Sep 2024 01 Sep 2024
4 Open Document Open Filing FORM 4 04 Sep 2024 03 Sep 2024
8-K Open Document | Data Open Filing 8-K 04 Sep 2024 02 Sep 2024 001-41526
8-K Open Document | Data Open Filing 8-K 03 Sep 2024 01 Sep 2024 001-41526
4 Open Document Open Filing FORM 4 30 Aug 2024 29 Aug 2024
4 Open Document Open Filing FORM 4 29 Aug 2024 28 Aug 2024
4 Open Document Open Filing FORM 4 14 Aug 2024 14 Aug 2024
8-K Open Document | Data Open Filing 8-K 09 Aug 2024 09 Aug 2024 001-41526
10-Q Open Document | Data Open Filing 10-Q 09 Aug 2024 30 Jun 2024 001-41526
8-K Open Document | Data Open Filing 8-K 22 Jul 2024 22 Jul 2024 001-41526
8-K Open Document | Data Open Filing 8-K 17 Jul 2024 17 Jul 2024 001-41526
8-K Open Document | Data Open Filing 8-K 10 Jul 2024 10 Jul 2024 001-41526
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024
8-K Open Document | Data Open Filing 8-K 03 Jul 2024 01 Jul 2024 001-41526
4 Open Document Open Filing FORM 4 24 Jun 2024 20 Jun 2024
8-K Open Document | Data Open Filing 8-K 07 Jun 2024 07 Jun 2024 001-41526
8-K Open Document | Data Open Filing 8-K 06 Jun 2024 06 Jun 2024 001-41526
8-K Open Document | Data Open Filing 8-K 29 May 2024 29 May 2024 001-41526
8-K Open Document | Data Open Filing 8-K 15 May 2024 15 May 2024 001-41526
10-Q Open Document | Data Open Filing 10-Q 15 May 2024 31 Mar 2024 001-41526
EFFECT Open Document Open Filing 18 Apr 2024 333-278553
424B2 Open Document Open Filing 424B2 18 Apr 2024 333-278553
8-K Open Document | Data Open Filing 8-K 18 Apr 2024 18 Apr 2024 001-41526
DEFA14A Open Document Open Filing DEFA14A 16 Apr 2024 001-41526
DEF 14A Open Document Open Filing DEF 14A 16 Apr 2024 29 May 2024 001-41526
UPLOAD Open Document Open Filing 16 Apr 2024 333-278553
CORRESP Open Document Open Filing 16 Apr 2024
S-3 Open Document Open Filing S-3 08 Apr 2024 333-278553
8-K Open Document | Data Open Filing 8-K 21 Mar 2024 21 Mar 2024 001-41526
10-K Open Document | Data Open Filing 10-K 21 Mar 2024 31 Dec 2023 001-41526
DEF 14C Open Document Open Filing DEF 14C 27 Feb 2024 27 Feb 2024 001-41526
4 Open Document Open Filing FORM 4 23 Feb 2024 23 Feb 2024
8-K Open Document | Data Open Filing 8-K 23 Feb 2024 22 Feb 2024 001-41526
PRE 14C Open Document Open Filing PRE 14C 16 Feb 2024 16 Feb 2024 001-41526
8-K Open Document | Data Open Filing 8-K 30 Jan 2024 29 Jan 2024 001-41526
8-K Open Document | Data Open Filing 8-K 29 Jan 2024 25 Jan 2024 001-41526
424B5 Open Document Open Filing 424B5 29 Jan 2024 333-275840
EFFECT Open Document Open Filing 12 Dec 2023 333-275840
CORRESP Open Document Open Filing 08 Dec 2023
UPLOAD Open Document Open Filing 08 Dec 2023
S-3 Open Document Open Filing S-3 01 Dec 2023 333-275840
8-K Open Document | Data Open Filing 8-K 27 Nov 2023 27 Nov 2023 001-41526
8-K Open Document | Data Open Filing 8-K 14 Nov 2023 14 Nov 2023 001-41526
10-Q Open Document | Data Open Filing 10-Q 14 Nov 2023 30 Sep 2023 001-41526
8-K Open Document | Data Open Filing 8-K 31 Oct 2023 31 Oct 2023 001-41526
8-K Open Document | Data Open Filing 8-K 20 Oct 2023 20 Oct 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 29 Aug 2023 29 Aug 2023 001-41526
3/A Open Document Open Filing 24 Aug 2023 12 Oct 2022
10-Q Open Document | Data Open Filing 10-Q 14 Aug 2023 30 Jun 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 14 Aug 2023 14 Aug 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 31 Jul 2023 31 Jul 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 30 Jun 2023 30 Jun 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 27 Jun 2023 26 Jun 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 14 Jun 2023 14 Jun 2023 001-41526
4 Open Document Open Filing 14 Jun 2023 13 Jun 2023
8-K/A Open Document | Data Open Filing FORM 8-K/A 05 Jun 2023 22 Mar 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 30 May 2023 30 May 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 26 May 2023 26 May 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 25 May 2023 24 May 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 15 May 2023 15 May 2023 001-41526
10-Q Open Document | Data Open Filing 10-Q 15 May 2023 31 Mar 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 12 May 2023 11 May 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 26 Apr 2023 26 Apr 2023 001-41526
DEFA14A Open Document Open Filing DEFA14A 10 Apr 2023 001-41526
DEF 14A Open Document Open Filing DEF 14A 10 Apr 2023 25 May 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 06 Apr 2023 05 Apr 2023 001-41526
4 Open Document Open Filing 03 Apr 2023 01 Apr 2023
4 Open Document Open Filing 03 Apr 2023 31 Mar 2023
4 Open Document Open Filing 03 Apr 2023 01 Apr 2023
4 Open Document Open Filing 31 Mar 2023 29 Mar 2023
4 Open Document Open Filing 30 Mar 2023 28 Mar 2023
8-K Open Document | Data Open Filing FORM 8-K 28 Mar 2023 22 Mar 2023 001-41526
4 Open Document Open Filing 27 Mar 2023 24 Mar 2023
4 Open Document Open Filing 24 Mar 2023 22 Mar 2023
4 Open Document Open Filing 24 Mar 2023 22 Mar 2023
4 Open Document Open Filing 23 Mar 2023 21 Mar 2023
4 Open Document Open Filing 23 Mar 2023 21 Mar 2023
4 Open Document Open Filing 23 Mar 2023 21 Mar 2023
4 Open Document Open Filing 23 Mar 2023 22 Mar 2023
4 Open Document Open Filing 23 Mar 2023 21 Mar 2023
4 Open Document Open Filing 23 Mar 2023 21 Mar 2023
8-K Open Document | Data Open Filing FORM 8-K 20 Mar 2023 20 Mar 2023 001-41526
4 Open Document Open Filing PRIMARY DOCUMENT 20 Mar 2023 17 Mar 2023
10-K Open Document | Data Open Filing 10-K 17 Mar 2023 31 Dec 2022 001-41526
4 Open Document Open Filing 16 Mar 2023 15 Mar 2023
4 Open Document Open Filing 15 Mar 2023 14 Mar 2023
4 Open Document Open Filing 13 Mar 2023 10 Mar 2023
4 Open Document Open Filing 06 Mar 2023 03 Mar 2023
8-K Open Document | Data Open Filing FORM 8-K 01 Mar 2023 01 Mar 2023 001-41526
SC 13G Open Document Open Filing SCHEDULE 13G 23 Feb 2023 005-93799
8-K Open Document | Data Open Filing FORM 8-K 16 Feb 2023 13 Feb 2023 001-41526
4 Open Document Open Filing 10 Feb 2023 10 Feb 2023
8-K Open Document | Data Open Filing FORM 8-K 24 Jan 2023 23 Jan 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 19 Jan 2023 13 Jan 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 18 Jan 2023 18 Jan 2023 001-41526
8-K Open Document | Data Open Filing FORM 8-K 21 Dec 2022 21 Dec 2022 001-41526
4 Open Document Open Filing 21 Dec 2022 20 Dec 2022
8-K Open Document | Data Open Filing FORM 8-K 14 Dec 2022 12 Dec 2022 001-41526
4 Open Document Open Filing 09 Dec 2022 02 Dec 2022
8-K Open Document | Data Open Filing FORM 8-K 09 Dec 2022 07 Dec 2022 001-41526
4 Open Document Open Filing 08 Dec 2022 06 Dec 2022
4 Open Document Open Filing 06 Dec 2022 02 Dec 2022
4 Open Document Open Filing 06 Dec 2022 05 Dec 2022
4 Open Document Open Filing 06 Dec 2022 02 Dec 2022
4 Open Document Open Filing 05 Dec 2022 01 Dec 2022
4 Open Document Open Filing 05 Dec 2022 02 Dec 2022
4/A Open Document Open Filing 02 Dec 2022 29 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 29 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 30 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 28 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 16 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 25 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 28 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 30 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 28 Nov 2022
4/A Open Document Open Filing 02 Dec 2022 01 Dec 2022
4 Open Document Open Filing 02 Dec 2022 01 Dec 2022
4 Open Document Open Filing 02 Dec 2022 30 Nov 2022
4 Open Document Open Filing 01 Dec 2022 29 Nov 2022
4 Open Document Open Filing 01 Dec 2022 30 Nov 2022
4 Open Document Open Filing 30 Nov 2022 29 Nov 2022
4 Open Document Open Filing 30 Nov 2022 28 Nov 2022
4 Open Document Open Filing 29 Nov 2022 28 Nov 2022
4 Open Document Open Filing 29 Nov 2022 28 Nov 2022
4 Open Document Open Filing 25 Nov 2022 25 Nov 2022
4 Open Document Open Filing 17 Nov 2022 16 Nov 2022
8-K Open Document | Data Open Filing FORM 8-K 15 Nov 2022 15 Nov 2022 001-41526
10-Q Open Document | Data Open Filing FORM 10-Q 14 Nov 2022 30 Sep 2022 001-41526
8-K Open Document | Data Open Filing FORM 8-K 08 Nov 2022 04 Nov 2022 001-41526
SC 13D Open Document Open Filing SCHEDULE 13D 24 Oct 2022 005-93799
SC 13D Open Document Open Filing SCHEDULE 13D 24 Oct 2022 005-93799
4 Open Document Open Filing 20 Oct 2022 17 Oct 2022
4 Open Document Open Filing 20 Oct 2022 17 Oct 2022
4 Open Document Open Filing 20 Oct 2022 17 Oct 2022
8-K Open Document | Data Open Filing FORM 8-K 18 Oct 2022 12 Oct 2022 001-41526
424B4 Open Document Open Filing FORM 424B4 14 Oct 2022 333-267249
424B4 Open Document Open Filing FORM 424B4 14 Oct 2022 333-267249
EFFECT Open Document Open Filing 12 Oct 2022 333-267249
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
3 Open Document Open Filing 12 Oct 2022 12 Oct 2022
CORRESP Open Document Open Filing 11 Oct 2022
CORRESP Open Document Open Filing 11 Oct 2022
S-1/A Open Document Open Filing FORM S-1/A 11 Oct 2022 333-267249
CORRESP Open Document Open Filing 06 Oct 2022
CORRESP Open Document Open Filing 06 Oct 2022
CERT Open Document Open Filing NYSE AMERICAN CERTIFICATION 06 Oct 2022 001-41526
8-A12B Open Document Open Filing FORM 8-A12B 06 Oct 2022 001-41526
S-1/A Open Document Open Filing FORM S-1/A 06 Oct 2022 333-267249
CORRESP Open Document Open Filing 05 Oct 2022
CORRESP Open Document Open Filing 05 Oct 2022
S-1/A Open Document Open Filing FORM S-1/A 04 Oct 2022 333-267249
CORRESP Open Document Open Filing 30 Sep 2022
S-1/A Open Document Open Filing FORM S-1/A 30 Sep 2022 333-267249
UPLOAD Open Document Open Filing 27 Sep 2022
S-1 Open Document Open Filing FORM S-1 02 Sep 2022 333-267249
UPLOAD Open Document Open Filing 22 Aug 2022
DRSLTR Open Document Open Filing 11 Aug 2022
DRS/A Open Document Open Filing 11 Aug 2022 377-06247
UPLOAD Open Document Open Filing 26 Jul 2022
DRS Open Document Open Filing 29 Jun 2022 377-06247
D Open Document Open Filing 19 Oct 2021 021-417484