Roubaix Capital’s Mirion Technologies MIR Stock Holding History

Roubaix Capital’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
2025 Q3	–	Sell	-166,347	Closed	-$3.58M	–	64
2025 Q2	$3.58M	Sell	166,347 -212,751	-56%	-$3.67M	1.72%	26
2025 Q1	$5.5M	Buy	379,098 +242,458	+177%	+$3.81M	2.86%	7
2024 Q4	$2.38M	Sell	136,640 -248,490	-65%	-$3.85M	1.14%	41
2024 Q3	$4.26M	Buy	+385,130	New	+$4.05M	2.35%	18
2024 Q1	–	Sell	-336,031	Closed	-$3.44M	–	53
2023 Q4	$3.44M	Sell	336,031 -165,957	-33%	-$1.4M	2.41%	17
2023 Q3	$3.75M	Buy	501,988 +2,509	+0.5%	+$19.8K	2.76%	13
2023 Q2	$4.22M	Buy	499,479 +51,328	+11%	+$417K	3.1%	11
2023 Q1	$3.83M	Buy	+448,151	New	+$3.56M	2.92%	10
2022 Q4	–	Sell	-505,293	Closed	-$3.77M	–	58
2022 Q3	$3.77M	Buy	505,293 +147,037	+41%	+$1.04M	3.36%	8
2022 Q2	$2.06M	Buy	+358,256	New	+$2.64M	1.78%	28

Other funds holding MIR

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

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

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

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

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

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

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

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Roubaix Capital's MIR Position: Q3 2025 in Review

Roubaix Capital sold out of Mirion Technologies (MIR) in Q3 2025, closing a stake of 166,347 shares — an estimated $3.58M sold.

Roubaix Capital first reported a position in MIR in Q2 2022 and held it in 10 quarters. The position peaked at $5.5M in Q1 2025. 342 funds tracked by Wall St. Rank hold MIR as of Q3 2025.

Roubaix Capital reported no remaining Mirion Technologies position as of Q3 2025 after selling out during the quarter.
Roubaix Capital sold 166,347 Mirion Technologies shares in Q3 2025, an estimated $3.58M.
Roubaix Capital first reported a position in Mirion Technologies in Q2 2022 and held it in 10 quarters.
Roubaix Capital's Mirion Technologies position peaked at $5.5M in Q1 2025.
342 funds tracked by Wall St. Rank held Mirion Technologies as of Q3 2025.

Based on Roubaix Capital's 13F filing for Q3 2025, filed 12 Nov 2025.