Who
Andrew Merriman
Chief Operating Officer
Company insider
Files Form 4 as: Chief Operating Officer, Castellum.
In numbers
- Trades disclosed
- 15
- Buys
- 5
- Sells
- 0
- Bought
- $72K
- Sold
- $0
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 22 Jan 2025
- Last trade
- 1 Oct 2026
- Last filed
- 1 Oct 2026
Companies traded
Activity over time
1 Mar – 1 Oct
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 1 Oct 2026filed 1 Oct 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $7471,396 at $0.5352 | filing |
| 9 Sep 2026filed 9 Sep 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $25K40,000 at $0.6193 | filing |
| 9 Sep 2026filed 9 Sep 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $6,20010,000 at $0.62 | filing |
| 9 Sep 2026filed 9 Sep 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $25K40,000 at $0.62 | filing |
| 9 Sep 2026filed 9 Sep 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $6,20010,000 at $0.62 | filing |
| 1 Jul 2026filed 2 Jul 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $7361,202 at $0.612 | filing |
| 1 Jul 2026filed 2 Jul 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $7331,202 at $0.61 | filing |
| 31 Mar 2026filed 31 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Code A | $6041,329 at $0.4544 | filing |
| 31 Mar 2026filed 31 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Code A | $5981,329 at $0.45 | filing |
| 27 Mar 2026filed 27 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $1,2852,000 at $0.6426 | filing |
| 27 Mar 2026filed 27 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $1,2802,000 at $0.64 | filing |
| 18 Mar 2026filed 18 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $2,3953,000 at $0.7983 | filing |
| 18 Mar 2026filed 18 Mar 2026 | CTM CastellumProfessional Services | SEC FORM 4 Bought | $2,4003,000 at $0.80 | filing |
| 11 Nov 2025filed 13 Nov 2025 | CTM Castellumoption or derivative · Professional Services | SEC FORM 4 Code A | —275,000 at $0.00 | filing |
| 22 Jan 2025filed 24 Jan 2025 | CTM Castellumoption or derivative · Professional Services | SEC FORM 4 Code A | $348K325,000 at $1.07 | filing |
News
No headline names them, or the companies they trade most, lately.