CASTELLUM INC

CUSIP: 14838t204 Class: COM

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q4 2025
Shares 2,114,029 Value ($000) $1,909 Avg Close — Range —
Q3 2025
Shares 2,153,617 Value ($000) $2,347 Avg Close — Range —
Q2 2025
Shares 2,090,500 Value ($000) $2,195 Avg Close — Range —