Merriman Andrew
SEC insider (Form 3/4/5 filer). CIK 0002036177. Chief Operating Officer at Castellum, Inc. (CTM). 8 reported Form 4/5 transactions since Sep 2024; latest on Oct 1, 2026. Located in VIENNA, VA.
Companies Merriman Andrew has filed insider reports for
- Castellum, Inc. (CTM): Officer, Chief Operating Officer
Merriman Andrew
CIK: 0002036177
Transaction Breakdown
Open Market Buys (P)6 (75.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (25.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
CTM
Castellum, Inc.
Officer
Discretionary Trading P&L
Holdings
Transaction History (8 total)
- Oct 1, 2026CTM
Castellum, Inc.
PurchaseDirect1.4K shares at avg. $0.54$747.139 - Sep 9, 2026CTM
Castellum, Inc.
PurchaseDirect40K shares at avg. $0.62$25K - Sep 9, 2026CTM
Castellum, Inc.
PurchaseDirect10K shares at avg. $0.62$6K - Jul 1, 2026CTM
Castellum, Inc.
PurchaseDirect1.2K shares at avg. $0.61$735.624 - Mar 27, 2026CTM
Castellum, Inc.
PurchaseDirect2K shares at avg. $0.64$1K - Mar 18, 2026CTM
Castellum, Inc.
PurchaseDirect3K shares at avg. $0.80$2K - Nov 11, 2025CTM
Castellum, Inc.
AwardDirectStock Options
275K shares- - Jan 22, 2025CTM
Castellum, Inc.
AwardDirectStock Options
325K shares at avg. $1.07-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 1, 2026 | CTM Castellum, Inc. | Purchase | 1,396 | $0.54 | $747 | Direct |
| Sep 9, 2026 | CTM Castellum, Inc. | Purchase | 40,000 | $0.62 | $24,772 | Direct |
| Sep 9, 2026 | CTM Castellum, Inc. | Purchase | 10,000 | $0.62 | $6,200 | Direct |
| Jul 1, 2026 | CTM Castellum, Inc. | Purchase | 1,202 | $0.61 | $736 | Direct |
| Mar 27, 2026 | CTM Castellum, Inc. | Purchase | 2,000 | $0.64 | $1,285 | Direct |
| Mar 18, 2026 | CTM Castellum, Inc. | Purchase | 3,000 | $0.80 | $2,395 | Direct |
| Nov 11, 2025 | CTM Castellum, Inc. | Award Stock Options | 275,000 | - | - | Direct |
| Jan 22, 2025 | CTM Castellum, Inc. | Award Stock Options | 325,000 | $1.07 | - | Direct |
1-8 of 8 transactions