Castellum, Inc. (CTM) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-02

Castellum, Inc. (CTM) has filed 4 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 8 Form 8-K material event filings were reported by CTM in the last 90 days. InsiderAlpha tracks every CTM SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Castellum, Inc. (CTM)

SEC CIK0001877939

90-Day SEC Filing Activity

Form 4 filings (90d)4
Form 8-K filings (90d)8
Latest Form 4 filing2026-07-02

Recent CTM Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
MARTIN TAMMY LGeneral Counsel and SecretaryP — Open-market purchase1.2K$0.61$736SEC
Ives Glen RPresidentP — Open-market purchase1.3K$0.61$772SEC
Bell David TChief Financial OfficerP — Open-market purchase1.2K$0.61$736SEC
Merriman AndrewChief Operating OfficerP — Open-market purchase1.2K$0.61$736SEC
MARTIN TAMMY LGeneral Counsel and SecretaryA — Grant or award1.3K$0.45$604SEC
Bell David TChief Financial OfficerA — Grant or award1.3K$0.45$604SEC
Merriman AndrewChief Operating OfficerA — Grant or award1.3K$0.45$604SEC
Merriman AndrewChief Operating OfficerP — Open-market purchase2.0K$0.64$1KSEC
Ives Glen RPresidentP — Open-market purchase2.0K$0.62$1KSEC
Ives Glen RPresidentP — Open-market purchase10.0K$0.66$7KSEC
McMillen Charles ThomasDirectorS — Open-market sale30.0K$0.70$21KSEC
McMillen Charles ThomasDirectorS — Open-market sale55.0K$0.80$44KSEC
Merriman AndrewChief Operating OfficerP — Open-market purchase3.0K$0.80$2KSEC
WRIGHT JAY OGeneral Counsel, SecretaryS — Open-market sale50.0K$1.11$56KSEC
WRIGHT JAY OGeneral Counsel, SecretaryS — Open-market sale50.0K$1.10$55KSEC

All transactions sourced from SEC EDGAR Form 4 filings for Castellum, Inc. (CTM). Updated in real time as new filings are submitted to the SEC.

Most-Active CTM Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
Ives Glen R2$772
Merriman Andrew1$736
Bell David T1$736
MARTIN TAMMY L1$736

Recent CTM Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CTM insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

CTM Insider Trading — FAQ

What is the latest insider trade for CTM?
Castellum, Inc. (CTM) had 4 insider filings in the last 90 days, with the most recent on 2026-07-02. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying CTM stock?
0 insider purchases of CTM were filed in the last 90 days.
How many insiders are selling CTM stock?
0 insider sales of CTM were filed in the last 90 days.
Where can I see CTM SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every CTM SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live CTM dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.