XTX Topco’s Castellum CTM Stock Holding History

XTX Topco’s Portfolio CTM Stock Details CTM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-204,717	Closed	-$223K	–	3393
2025 Q3	$223K	Buy	204,717 +68,921	+51%	+$80.1K	0.01%	1760
2025 Q2	$143K	Buy	135,796 +70,377	+108%	+$72.3K	0.01%	1799
2025 Q1	$69.3K	Buy	+65,419	New	+$69.5K	﹤0.01%	1936
2024 Q4	–	Sell	-34,294	Closed	-$6K	–	2395
2024 Q3	$6K	Buy	34,294 +18,248	+114%	+$3.18K	﹤0.01%	1968
2024 Q2	$2.98K	Sell	16,046 -14,065	-47%	-$3.25K	﹤0.01%	1765
2024 Q1	$7.83K	Buy	30,111 +15,342	+104%	+$4.65K	﹤0.01%	1686
2023 Q4	$4.4K	Buy	+14,769	New	+$3.99K	﹤0.01%	1483

Other funds holding CTM

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

EIM

Essex Investment Management Boston, Massachusetts $632M AUM 95.36% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

MWM

Meridian Wealth Management Lexington, Kentucky $2.85B AUM 31.23% 1-Year Est. Return

LCM

Legato Capital Management San Francisco, California $1.1B AUM 61.65% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

SEI Investments Oaks, Pennsylvania $108B AUM 26.14% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

XTX Topco's CTM Position: Q4 2025 in Review

XTX Topco sold out of Castellum (CTM) in Q4 2025, closing a stake of 204,717 shares — an estimated $223K sold.

XTX Topco first reported a position in CTM in Q4 2023 and held it in 7 quarters. The position peaked at $223K in Q3 2025. 40 funds tracked by Wall St. Rank hold CTM as of Q4 2025.

XTX Topco reported no remaining Castellum position as of Q4 2025 after selling out during the quarter.
XTX Topco sold 204,717 Castellum shares in Q4 2025, an estimated $223K.
XTX Topco first reported a position in Castellum in Q4 2023 and held it in 7 quarters.
XTX Topco's Castellum position peaked at $223K in Q3 2025.
40 funds tracked by Wall St. Rank held Castellum as of Q4 2025.

Based on XTX Topco's 13F filing for Q4 2025, filed 17 Feb 2026.