State Street
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State Street’s Mirion Technologies MIR Stock Holding History

State Street’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 		$178M Buy
9,923,609
+493,592
+5% +$9.15M 0.01% 1119
2026
Q1 		$175M Buy
9,430,017
+231,222
+3% +$5.22M 0.01% 1016
2025
Q4 		$215M Buy
9,198,795
+382,449
+4% +$9.54M 0.01% 897
2025
Q3 		$205M Buy
8,816,346
+3,722,274
+73% +$80.5M 0.01% 925
2025
Q2 		$110M Sell
5,094,072
-45,497
-0.9% -$784K ﹤0.01% 1251
2025
Q1 		$74.5M Sell
5,139,569
-61,523
-1% -$967K ﹤0.01% 1426
2024
Q4 		$90.8M Sell
5,201,092
-164,636
-3% -$2.55M ﹤0.01% 1402
2024
Q3 		$59.4M Buy
5,365,728
+138,648
+3% +$1.46M ﹤0.01% 1612
2024
Q2 		$56.1M Buy
5,227,080
+176,544
+3% +$1.88M ﹤0.01% 1615
2024
Q1 		$57.4M Buy
5,050,536
+36,970
+0.7% +$370K ﹤0.01% 1649
2023
Q4 		$51.4M Sell
5,013,566
-106,355
-2% -$898K ﹤0.01% 1690
2023
Q3 		$38.2M Buy
5,119,921
+283,133
+6% +$2.23M ﹤0.01% 1789
2023
Q2 		$40.9M Buy
4,836,788
+1,051,186
+28% +$8.53M ﹤0.01% 1791
2023
Q1 		$32.3M Buy
3,785,602
+191,701
+5% +$1.52M ﹤0.01% 1920
2022
Q4 		$23.8M Sell
3,593,901
-81,147
-2% -$546K ﹤0.01% 2120
2022
Q3 		$27.5M Buy
3,675,048
+407,454
+12% +$2.87M ﹤0.01% 1998
2022
Q2 		$18.8M Buy
3,267,594
+2,930,457
+869% +$21.6M ﹤0.01% 2290
2022
Q1 		$2.72M Buy
337,137
+17,237
+5% +$148K ﹤0.01% 3457
2021
Q4 		$3.35M Buy
+319,900
New +$3.43M ﹤0.01% 3440

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Alyeska Investment Group
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
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street's MIR Position: Q2 2026 in Review

State Street increased its Mirion Technologies (MIR) stake by 5.2% in Q2 2026, buying an estimated $9.15M and bringing the position to 9,923,609 shares worth $178M. The position accounts for 0.01% of the portfolio, ranked #1119.

State Street first reported a position in MIR in Q4 2021 and has held it in 19 quarters since. The position peaked at $215M in Q4 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • State Street held 9,923,609 shares of Mirion Technologies worth $178M as of Q2 2026.
  • State Street bought 493,592 Mirion Technologies shares in Q2 2026, an estimated $9.15M.
  • Mirion Technologies made up 0.01% of State Street's portfolio in Q2 2026, its #1119 holding.
  • State Street first reported a position in Mirion Technologies in Q4 2021 and has held it in 19 quarters since.
  • State Street's Mirion Technologies position peaked at $215M in Q4 2025.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on State Street's 13F filing for Q2 2026, filed 7 Aug 2026.