CTM — CASTELLUM INC

Ownership history in XTX Topco Ltd · 7 quarters on record

This page tracks every 13F SEC filing in which XTX Topco Ltd reported a position in CASTELLUM INC (CTM). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position

0.01% (2025 Q3)

Avg. % of fund

0.0%

First filed

2023 Q4

Last filed

2025 Q3

Quarters held

7

Quarter	Action	Shares	Change	Chg %	% of Fund	Mkt Value	Price (EOQ)
2025 Q3	ADDED	204,717	+68,921	+50.8%	0.01%	$223K	$1.09
2025 Q2	ADDED	135,796	+70,377	+107.6%	0.01%	$143K	$1.05
2025 Q1	ADDED	65,419	+31,125	+90.8%	0.00%	$69K	$1.06
2024 Q3	ADDED	34,294	+18,248	+113.7%	0.00%	$6K	$0.17

% of Fund (quarterly) CTM price (monthly, adj. close)

Other funds also holding CTM

As of 2025 Q4 — sorted by position size

ESSEX INVESTMENT MANAGEMENT CO LLC 3Y 7Y 0.29% Legato Capital Management LLC 3Y 7Y 0.05% Meridian Wealth Management, LLC 3Y 7Y 0.02% New Century Financial Group, LLC 0.02% Almanack Investment Partners, LLC. 3Y 7Y 0.01% Savvy Advisors, Inc. 0.01% Inspire Advisors, LLC 3Y 0.0% Revisor Wealth Management LLC 0.0% Quadrature Capital Ltd 3Y 7Y 0.0% BRIDGEWAY CAPITAL MANAGEMENT, LLC 3Y 7Y 0.0%

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