CenterBook Partners’s Mirion Technologies MIR Stock Holding History

CenterBook Partners’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	$286K	Buy	+15,373	New	+$347K	0.02%	568
2023 Q1	–	Sell	-24,571	Closed	-$162K	–	435
2022 Q4	$162K	Sell	24,571 -87,908	-78%	-$592K	0.03%	369
2022 Q3	$840K	Buy	112,479 +32,922	+41%	+$232K	0.16%	213
2022 Q2	$458K	Buy	79,557 +24,785	+45%	+$182K	0.1%	280
2022 Q1	$442K	Buy	54,772 +27,310	+99%	+$235K	0.16%	226
2021 Q4	$288K	Buy	+27,462	New	+$295K	0.17%	208

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

CenterBook Partners's MIR Position: Q1 2026 in Review

CenterBook Partners opened a new position in Mirion Technologies (MIR) in Q1 2026: 15,373 shares worth $286K. The stake represents 0.02% of the portfolio and ranks #568 among its holdings. This is a return to the name: CenterBook Partners previously reported a position in MIR as recently as Q4 2022.

CenterBook Partners first reported a position in MIR in Q4 2021 and has held it in 6 quarters since. The position peaked at $840K in Q3 2022. 361 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

CenterBook Partners held 15,373 shares of Mirion Technologies worth $286K as of Q1 2026.
Mirion Technologies was a new CenterBook Partners position in Q1 2026.
Mirion Technologies made up 0.02% of CenterBook Partners's portfolio in Q1 2026, its #568 holding.
CenterBook Partners first reported a position in Mirion Technologies in Q4 2021 and has held it in 6 quarters since.
CenterBook Partners's Mirion Technologies position peaked at $840K in Q3 2022.
361 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on CenterBook Partners's 13F filing for Q1 2026, filed 5 May 2026.