Russell Investments Group
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Russell Investments Group’s Mirion Technologies MIR Stock Holding History

Russell Investments Group’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 		$3.3M Buy
183,988
+116,329
+172% +$2.16M ﹤0.01% 1780
2026
Q1 		$1.26M Buy
67,659
+45,579
+206% +$1.03M ﹤0.01% 2108
2025
Q4 		$517K Buy
22,080
+2,235
+11% +$55.7K ﹤0.01% 2483
2025
Q3 		$462K Buy
19,845
+19,758
+22,710% +$427K ﹤0.01% 2507
2025
Q2 		$1.87K Hold
87
– – ﹤0.01% 3597
2025
Q1 		$1.26K Buy
+87
New +$1.37K ﹤0.01% 3575
2024
Q4 		– Sell
-163,766
Closed -$1.81M – 3759
2024
Q3 		$1.81M Sell
163,766
-36,959
-18% -$389K ﹤0.01% 1739
2024
Q2 		$2.16M Buy
200,725
+52,059
+35% +$553K ﹤0.01% 1599
2024
Q1 		$1.69M Sell
148,666
-41,289
-22% -$414K ﹤0.01% 1734
2023
Q4 		$1.95M Sell
189,955
-134,258
-41% -$1.13M ﹤0.01% 1626
2023
Q3 		$2.42M Buy
324,213
+13,607
+4% +$107K ﹤0.01% 1436
2023
Q2 		$2.62M Buy
310,606
+46,275
+18% +$375K 0.01% 1410
2023
Q1 		$2.26M Buy
264,331
+517
+0.2% +$4.1K ﹤0.01% 1504
2022
Q4 		$1.74M Buy
263,814
+64,195
+32% +$432K ﹤0.01% 1678
2022
Q3 		$1.49M Buy
199,619
+73,168
+58% +$515K ﹤0.01% 1721
2022
Q2 		$728K Buy
+126,451
New +$930K ﹤0.01% 2101
2021
Q3 		– Sell
-441,596
Closed -$4.59M – 3148
2021
Q2 		$4.59M Buy
+441,596
New +$4.54M 0.01% 1406

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
TG
TCW Group Los Angeles, California $14.9B AUM 46.29% 1-Year Est. Return
SIMG
Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 1-Year Est. Return
TCM
TimesSquare Capital Management New York $6.8B AUM 45.85% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
EA
Emerald Advisers Leola, Pennsylvania $4.25B AUM 141.71% 1-Year Est. Return
CCA
Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return

Russell Investments Group's MIR Position: Q2 2026 in Review

Russell Investments Group increased its Mirion Technologies (MIR) stake by 172% in Q2 2026, buying an estimated $2.16M and bringing the position to 183,988 shares worth $3.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1780.

Russell Investments Group first reported a position in MIR in Q2 2021 and has held it in 17 quarters since. The position peaked at $4.59M in Q2 2021. 157 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Russell Investments Group held 183,988 shares of Mirion Technologies worth $3.3M as of Q2 2026.
  • Russell Investments Group bought 116,329 Mirion Technologies shares in Q2 2026, an estimated $2.16M.
  • Mirion Technologies made up ﹤0.01% of Russell Investments Group's portfolio in Q2 2026, its #1780 holding.
  • Russell Investments Group first reported a position in Mirion Technologies in Q2 2021 and has held it in 17 quarters since.
  • Russell Investments Group's Mirion Technologies position peaked at $4.59M in Q2 2021.
  • 157 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Russell Investments Group's 13F filing for Q2 2026, filed 6 Aug 2026.