Oppenheimer & Co’s Mirion Technologies MIR Stock Holding History

Oppenheimer & Co’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	$738K	Sell	41,146 -469	-1%	-$8.7K	0.01%	1073
2026 Q1	$774K	Buy	41,615 +7,634	+22%	+$172K	0.01%	989
2025 Q4	$796K	Buy	33,981 +1,919	+6%	+$47.9K	0.01%	890
2025 Q3	$746K	Buy	32,062 +550	+2%	+$11.9K	0.01%	1029
2025 Q2	$678K	Sell	31,512 -1,803	-5%	-$31.1K	0.01%	1028
2025 Q1	$483K	Sell	33,315 -1,848	-5%	-$29K	0.01%	1087
2024 Q4	$614K	Sell	35,163 -23,097	-40%	-$358K	0.01%	1005
2024 Q3	$645K	Buy	58,260 +2,595	+5%	+$27.3K	0.01%	944
2024 Q2	$598K	Buy	+55,665	New	+$592K	0.01%	948
2023 Q4	–	Sell	-13,900	Closed	-$104K	–	1428
2023 Q3	$104K	Hold	13,900	–	–	﹤0.01%	1319
2023 Q2	$117K	Buy	+13,900	New	+$113K	﹤0.01%	1342
2021 Q4	–	Sell	-22,119	Closed	-$226K	–	1535
2021 Q3	$226K	Sell	22,119 -374	-2%	-$3.77K	﹤0.01%	1343
2021 Q2	$234K	Sell	22,493 -190	-0.8%	-$1.95K	﹤0.01%	1366
2021 Q1	$237K	Buy	+22,683	New	+$266K	﹤0.01%	1274

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

Oppenheimer & Co's MIR Position: Q2 2026 in Review

Oppenheimer & Co reduced its Mirion Technologies (MIR) stake by 1.1% in Q2 2026, selling an estimated $8.7K and leaving 41,146 shares worth $738K. The position accounts for 0.01% of the portfolio, ranked #1073.

Oppenheimer & Co first reported a position in MIR in Q1 2021 and has held it in 14 quarters since. The position peaked at $796K in Q4 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

Oppenheimer & Co held 41,146 shares of Mirion Technologies worth $738K as of Q2 2026.
Oppenheimer & Co sold 469 Mirion Technologies shares in Q2 2026, an estimated $8.7K.
Mirion Technologies made up 0.01% of Oppenheimer & Co's portfolio in Q2 2026, its #1073 holding.
Oppenheimer & Co first reported a position in Mirion Technologies in Q1 2021 and has held it in 14 quarters since.
Oppenheimer & Co's Mirion Technologies position peaked at $796K in Q4 2025.
351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Oppenheimer & Co's 13F filing for Q2 2026, filed 3 Aug 2026.