John Overdeck’s Castellum CTM Stock Holding History

John Overdeck’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	–	Sell	-75,384	Closed	-$68.1K	–	4638
2025 Q4	$68.1K	Sell	75,384 -2,181	-3%	-$2.33K	﹤0.01%	3896
2025 Q3	$84.5K	Buy	77,565 +44,569	+135%	+$51.8K	﹤0.01%	3490
2025 Q2	$34.6K	Buy	+32,996	New	+$33.9K	﹤0.01%	3091

Other funds holding CTM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

MWM

Meridian Wealth Management Lexington, Kentucky $3.25B AUM 41% 1-Year Est. Return

CAPTRUST Financial Advisors Raleigh, North Carolina $65.5B AUM 24.25% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

SAI

Savvy Advisors Inc New York $4.71B AUM 25.36% 1-Year Est. Return

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

John Overdeck's CTM Position: Q1 2026 in Review

John Overdeck sold out of Castellum (CTM) in Q1 2026, closing a stake of 75,384 shares — an estimated $68.1K sold.

John Overdeck first reported a position in CTM in Q2 2025 and held it in 3 quarters. The position peaked at $84.5K in Q3 2025. 27 funds tracked by Wall St. Rank hold CTM as of Q1 2026.

John Overdeck reported no remaining Castellum position as of Q1 2026 after selling out during the quarter.
John Overdeck sold 75,384 Castellum shares in Q1 2026, an estimated $68.1K.
John Overdeck first reported a position in Castellum in Q2 2025 and held it in 3 quarters.
John Overdeck's Castellum position peaked at $84.5K in Q3 2025.
27 funds tracked by Wall St. Rank held Castellum as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.