Castellum (CTM): Director sold ~$6.6K

~$6.6K

Approx. value · 6,000 sh @ $1.10

7.18M

Holds after · shares reported

Traded

Dec 15, 2025

Filed

Dec 17, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Nov 7, 2025Company filing · Form 8-K · ResultsReported its results
2. Nov 11, 2025InsiderDirector sold ~$71K of CTM shares in the open market
3. Nov 13, 2025InsiderDirector sold ~$186K of CTM shares in the open market
4. Nov 14, 2025InsiderDirector sold ~$104K of CTM shares in the open market
5. Nov 17, 2025InsiderDirector sold ~$12K of CTM shares in the open market
6. Nov 28, 2025InsiderDirector sold ~$19K of CTM shares in the open market
7. Dec 1, 2025InsiderDirector sold ~$37K of CTM shares in the open market
8. Dec 8, 2025Company filing · Form 8-K · Executive change, Other newsChanged a top executive or board member, and reported other company news“Effective January 1, 2026 the Company has appointed Tammy L. Martin, the Company's Senior Counsel, as General Counsel and Secretary.”
9. Dec 10, 2025InsiderDirector sold ~$153K of CTM shares in the open market
10. Dec 11, 2025InsiderDirector sold ~$58K of CTM shares in the open market
11. Dec 12, 2025InsiderDirector sold ~$13K of CTM shares in the open market
12. Dec 15, 2025 · this disclosureInsiderDirector sold ~$6.6K of CTM shares in the open market

What came next

1. Dec 16, 2025InsiderDirector sold ~$13K of CTM shares in the open market
2. Dec 19, 2025InsiderDirector sold ~$32K of CTM shares in the open market
3. Jan 1, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“Castellum, Inc. (the "Company") entered into an at-will employment arrangement with Tammy L. Martin, the Company's General Counsel, the terms of which are effective January 1, 2026.”
4. Mar 4, 2026Company filing · Form 8-K · ResultsReported its results
5. Mar 18, 2026Insider · 2 peopleInsiders: 1 purchase (~$2K), 1 sale (~$44K)
6. Mar 25, 2026InsiderDirector sold ~$21K of CTM shares in the open market
7. Mar 26, 2026Insider · Their first buy on recordOfficer purchased ~$6.6K of CTM shares in the open market
8. Mar 27, 2026Insider · 2 peopleInsiders: 2 purchases (~$3K)

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Castellum

For Castellum, OQRO holds 3 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CTM page.

Other recent filings by Jay O Wright, General Counsel, Secretary

• SEC Form 4 at Castellum (CTM)Dec 22, 2025
• SEC Form 4 at Castellum (CTM)Dec 17, 2025
• SEC Form 4 at Castellum (CTM)Dec 12, 2025
• SEC Form 4 at Castellum (CTM)Dec 12, 2025
• SEC Form 4 at Castellum (CTM)Dec 12, 2025

The full history of Jay O Wright, General Counsel, Secretary is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Castellum

• SEC Form 4Nov 10, 2026
• SEC Form 4Sep 9, 2026
• SEC Form 4Sep 9, 2026
• SEC Form 4Mar 27, 2026
• SEC Form 4Mar 27, 2026
• SEC Form 4Mar 27, 2026

Everything OQRO holds on this company is on its CTM page.