BlackRock’s Castellum CTM Stock Holding History

BlackRock’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
2026 Q1	$157K	Hold	265,486	–	–	﹤0.01%	4849
2025 Q4	$240K	Hold	265,486	–	–	﹤0.01%	4676
2025 Q3	$289K	Buy	265,486 +138,065	+108%	+$160K	﹤0.01%	4602
2025 Q2	$134K	Hold	127,421	–	–	﹤0.01%	4770
2025 Q1	$135K	Buy	+127,421	New	+$135K	﹤0.01%	4690
2024 Q3	–	Sell	-19,159	Closed	-$3.56K	–	5242
2024 Q2	$3.56K	Sell	19,159 -22,448	-54%	-$5.19K	﹤0.01%	5157
2024 Q1	$10.8K	Sell	41,607 -5,314	-11%	-$1.61K	﹤0.01%	5080
2023 Q4	$14K	Sell	46,921 -548	-1%	-$148	﹤0.01%	5122
2023 Q3	$10.9K	Sell	47,469 -1,918	-4%	-$715	﹤0.01%	5194
2023 Q2	$24.7K	Buy	+49,387	New	+$40.9K	﹤0.01%	5180

Other funds holding CTM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

CAPTRUST Financial Advisors Raleigh, North Carolina $57.3B AUM 18.32% 1-Year Est. Return

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

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

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

SAI

Savvy Advisors Inc New York $3.75B AUM 21.95% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

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

BlackRock's CTM Position: Q1 2026 in Review

BlackRock held its Castellum (CTM) position steady in Q1 2026 at 265,486 shares worth $157K. The position accounts for ﹤0.01% of the portfolio, ranked #4849.

BlackRock first reported a position in CTM in Q2 2023 and has held it in 10 quarters since. The position peaked at $289K in Q3 2025. 27 funds tracked by Wall St. Rank hold CTM as of Q1 2026.

BlackRock held 265,486 shares of Castellum worth $157K as of Q1 2026.
BlackRock left its Castellum share count unchanged in Q1 2026.
Castellum made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #4849 holding.
BlackRock first reported a position in Castellum in Q2 2023 and has held it in 10 quarters since.
BlackRock's Castellum position peaked at $289K in Q3 2025.
27 funds tracked by Wall St. Rank held Castellum as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.