Fidelity Investments
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Fidelity Investments’s Mirion Technologies MIR Stock Holding History

Fidelity Investments’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 		$131M Buy
7,329,386
+777,694
+12% +$14.4M 0.01% 1120
2026
Q1 		$122M Sell
6,551,692
-1,862,608
-22% -$42M 0.01% 1087
2025
Q4 		$197M Sell
8,414,300
-664,001
-7% -$16.6M 0.01% 865
2025
Q3 		$211M Buy
9,078,301
+8,131,306
+859% +$176M 0.01% 824
2025
Q2 		$20.4M Buy
946,995
+625,204
+194% +$10.8M ﹤0.01% 1691
2025
Q1 		$4.67M Buy
321,791
+19,502
+6% +$307K ﹤0.01% 2176
2024
Q4 		$5.27M Buy
302,289
+284,332
+1,583% +$4.41M ﹤0.01% 2137
2024
Q3 		$199K Buy
17,957
+12,947
+258% +$136K ﹤0.01% 3198
2024
Q2 		$53.8K Buy
5,010
+439
+10% +$4.67K ﹤0.01% 3578
2024
Q1 		$52K Sell
4,571
-9,611
-68% -$96.3K ﹤0.01% 3565
2023
Q4 		$145K Sell
14,182
-479,068
-97% -$4.04M ﹤0.01% 3066
2023
Q3 		$3.68M Sell
493,250
-4,213,833
-90% -$33.2M ﹤0.01% 2122
2023
Q2 		$39.8M Sell
4,707,083
-3,945,110
-46% -$32M ﹤0.01% 1359
2023
Q1 		$73.9M Sell
8,652,193
-637,126
-7% -$5.05M 0.01% 1094
2022
Q4 		$61.4M Buy
9,289,319
+503,372
+6% +$3.39M 0.01% 1168
2022
Q3 		$65.6M Buy
8,785,947
+216,746
+3% +$1.53M 0.01% 1130
2022
Q2 		$49.4M Buy
8,569,201
+103,176
+1% +$759K ﹤0.01% 1265
2022
Q1 		$68.3M Buy
8,466,025
+966,025
+13% +$8.32M 0.01% 1269
2021
Q4 		$78.5M Buy
+7,500,000
New +$80.5M 0.01% 1215

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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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
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

Fidelity Investments's MIR Position: Q2 2026 in Review

Fidelity Investments increased its Mirion Technologies (MIR) stake by 12% in Q2 2026, buying an estimated $14.4M and bringing the position to 7,329,386 shares worth $131M. The position accounts for 0.01% of the portfolio, ranked #1120.

Fidelity Investments first reported a position in MIR in Q4 2021 and has held it in 19 quarters since. The position peaked at $211M in Q3 2025. 352 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Fidelity Investments held 7,329,386 shares of Mirion Technologies worth $131M as of Q2 2026.
  • Fidelity Investments bought 777,694 Mirion Technologies shares in Q2 2026, an estimated $14.4M.
  • Mirion Technologies made up 0.01% of Fidelity Investments's portfolio in Q2 2026, its #1120 holding.
  • Fidelity Investments first reported a position in Mirion Technologies in Q4 2021 and has held it in 19 quarters since.
  • Fidelity Investments's Mirion Technologies position peaked at $211M in Q3 2025.
  • 352 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Fidelity Investments's 13F filing for Q2 2026, filed 13 Aug 2026.