CASTELLUM INC

CUSIP: 14838t204 Class: COM

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

Institution	Shares	Value ($000)
ESSEX INVESTMENT MANAGEMENT CO LLC	2,114,029	$1,909
Legato Capital Management LLC	680,945	$615
Total (2 institutions)	2,794,974	$2,524