Merriman Andrew is a corporate insider who has filed 1 SEC Form 4 transaction in the past 12 months across 1 company. Of these, 1 were open-market purchase totaling $0.00M in personal capital deployed. Insider activity is one signal among many — past performance does not guarantee future results.

Merriman Andrew

COO

Latest Insider Transactions

3 transactions (past 365 days)

CTM
COO
Award
$603
1,329 shares @ $0.45
Filed 2026-03-31Trade 2026-03-31
Castellum, Inc.
CTM
COO
Purchase
$1.3K
2,000 shares @ $0.64
Filed 2026-03-27Trade 2026-03-27
Castellum, Inc.
CTM
COO
Award
$0
275,000 shares @ $0.00
Filed 2025-11-13Trade 2025-11-11
Castellum, Inc.