BAMCO Inc’s Mirion Technologies MIR Stock Holding History

BAMCO Inc’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	$70M	Buy	3,906,083 +2,692,335	+222%	+$49.9M	0.11%	96
2026 Q1	$22.6M	Buy	1,213,748 +563,748	+87%	+$12.7M	0.07%	186
2025 Q4	$15.2M	Buy	650,000 +150,000	+30%	+$3.74M	0.04%	210
2025 Q3	$11.6M	Buy	+500,000	New	+$10.8M	0.03%	232
2023 Q2	–	Sell	-150,000	Closed	-$1.28M	–	353
2023 Q1	$1.28M	Sell	150,000 -408,304	-73%	-$3.24M	﹤0.01%	313
2022 Q4	$3.69M	Hold	558,304	–	–	0.01%	296
2022 Q3	$4.17M	Sell	558,304 -635,600	-53%	-$4.48M	0.01%	279
2022 Q2	$6.88M	Sell	1,193,904 -2,606,096	-69%	-$19.2M	0.02%	267
2022 Q1	$30.7M	Hold	3,800,000	–	–	0.08%	188
2021 Q4	$39.8M	Buy	+3,800,000	New	+$40.8M	0.08%	196

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

BAMCO Inc's MIR Position: Q2 2026 in Review

BAMCO Inc increased its Mirion Technologies (MIR) stake by 222% in Q2 2026, buying an estimated $49.9M and bringing the position to 3,906,083 shares worth $70M. The position accounts for 0.11% of the portfolio, ranked #96.

BAMCO Inc first reported a position in MIR in Q4 2021 and has held it in 10 quarters since. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

BAMCO Inc held 3,906,083 shares of Mirion Technologies worth $70M as of Q2 2026.
BAMCO Inc bought 2,692,335 Mirion Technologies shares in Q2 2026, an estimated $49.9M.
Mirion Technologies made up 0.11% of BAMCO Inc's portfolio in Q2 2026, its #96 holding.
BAMCO Inc first reported a position in Mirion Technologies in Q4 2021 and has held it in 10 quarters since.
351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on BAMCO Inc's 13F filing for Q2 2026, filed 14 Aug 2026.