BELL DAVID T

PrivateCIK: 1944338
Location

VIENNA, VA

BELL DAVID T (Chief Financial Officer) purchased 8.1% of their position (1.40K shares) of CASTELLUM, INC. on the open market

Open‑market purchase worth $747.14 — a moderate purchase. The strongest form of insider conviction signal.

P · 1 purchase
InsiderBELL DAVID TCIK 1944338
→
IssuerCASTELLUM, INC.CIK 1877939
Officer· Chief Financial Officer
Since Oct 2022
+1.40K
Net shares
Net buyer
$747.14
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
1.40K acquired
Non-Derivative Transactions1

Common Stock

Direct
P · Purchase

Shares

+1.40K

Price / share

$0.54

Trade value

$747.14

% of position

8.1%
10/1/2026
17.25K→18.65K
Total

Net shares

+1.40K

Net value

$747.14

Derivative Transactions0
No derivative transactions reported
BELL DAVID T — Insider Transaction (Form 4) Filed Oct 1, 2026 | Finecho