CastleKnight Management’s Mirion Technologies MIR Stock Holding History

CastleKnight Management’s Portfolio MIR Stock Details MIR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-8,750	Closed	-$205K	–	478
2025 Q4	$205K	Hold	8,750	–	–	﹤0.01%	346
2025 Q3	$204K	Sell	8,750 -8,750	-50%	-$189K	﹤0.01%	435
2025 Q2	$377K	Sell	17,500 -45,600	-72%	-$786K	0.01%	379
2025 Q1	$915K	Sell	63,100 -36,800	-37%	-$578K	0.04%	221
2024 Q4	$1.74M	Buy	+99,900	New	+$1.55M	0.05%	182

Other funds holding MIR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

CLG

Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return

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

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

CastleKnight Management's MIR Position: Q1 2026 in Review

CastleKnight Management sold out of Mirion Technologies (MIR) in Q1 2026, closing a stake of 8,750 shares — an estimated $205K sold.

CastleKnight Management first reported a position in MIR in Q4 2024 and held it in 5 quarters. The position peaked at $1.74M in Q4 2024. 360 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

CastleKnight Management reported no remaining Mirion Technologies position as of Q1 2026 after selling out during the quarter.
CastleKnight Management sold 8,750 Mirion Technologies shares in Q1 2026, an estimated $205K.
CastleKnight Management first reported a position in Mirion Technologies in Q4 2024 and held it in 5 quarters.
CastleKnight Management's Mirion Technologies position peaked at $1.74M in Q4 2024.
360 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on CastleKnight Management's 13F filing for Q1 2026, filed 15 May 2026.