TwinBeech Capital’s Mirion Technologies MIR Stock Holding History

TwinBeech 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
2026 Q2	–	Sell	-14,008	Closed	-$260K	–	559
2026 Q1	$260K	Sell	14,008 -43,092	-75%	-$972K	0.03%	473
2025 Q4	$1.34M	Buy	+57,100	New	+$1.42M	0.1%	254
2022 Q2	–	Sell	-18,911	Closed	-$153K	–	640
2022 Q1	$153K	Buy	18,911 +7,694	+69%	+$66.3K	0.01%	459
2021 Q4	$117K	Buy	+11,217	New	+$120K	0.01%	529

Other funds holding MIR

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

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

Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return

CLG

Cooperman Leon G $3.55B AUM 41.85% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

CAM

Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

TwinBeech Capital's MIR Position: Q2 2026 in Review

TwinBeech Capital sold out of Mirion Technologies (MIR) in Q2 2026, closing a stake of 14,008 shares — an estimated $260K sold.

TwinBeech Capital first reported a position in MIR in Q4 2021 and held it in 4 quarters. The position peaked at $1.34M in Q4 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

TwinBeech Capital reported no remaining Mirion Technologies position as of Q2 2026 after selling out during the quarter.
TwinBeech Capital sold 14,008 Mirion Technologies shares in Q2 2026, an estimated $260K.
TwinBeech Capital first reported a position in Mirion Technologies in Q4 2021 and held it in 4 quarters.
TwinBeech Capital's Mirion Technologies position peaked at $1.34M in Q4 2025.
351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on TwinBeech Capital's 13F filing for Q2 2026, filed 14 Aug 2026.