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
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 $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
CLG
Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Fidelity Investments's MIR Position: Q1 2026 in Review

Fidelity Investments reduced its Mirion Technologies (MIR) stake by 22% in Q1 2026, selling an estimated $42M and leaving 6,551,692 shares worth $122M. The position accounts for 0.01% of the portfolio, ranked #1087.

Fidelity Investments first reported a position in MIR in Q4 2021 and has held it in 18 quarters since. The position peaked at $211M in Q3 2025. 360 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

  • Fidelity Investments held 6,551,692 shares of Mirion Technologies worth $122M as of Q1 2026.
  • Fidelity Investments sold 1,862,608 Mirion Technologies shares in Q1 2026, an estimated $42M.
  • Mirion Technologies made up 0.01% of Fidelity Investments's portfolio in Q1 2026, its #1087 holding.
  • Fidelity Investments first reported a position in Mirion Technologies in Q4 2021 and has held it in 18 quarters since.
  • Fidelity Investments's Mirion Technologies position peaked at $211M in Q3 2025.
  • 360 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on Fidelity Investments's 13F filing for Q1 2026, filed 15 May 2026.