Morgan Stanley
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Morgan Stanley’s Mirion Technologies MIR Stock Holding History

Morgan Stanley’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 		$69.9M Buy
3,896,754
+1,611,686
+71% +$29.9M ﹤0.01% 1898
2026
Q1 		$42.5M Buy
2,285,068
+188,210
+9% +$4.25M ﹤0.01% 2273
2025
Q4 		$49.1M Buy
2,096,858
+782,951
+60% +$19.5M ﹤0.01% 2099
2025
Q3 		$30.6M Sell
1,313,907
-160,803
-11% -$3.48M ﹤0.01% 2469
2025
Q2 		$31.8M Buy
1,474,710
+252,633
+21% +$4.35M ﹤0.01% 2351
2025
Q1 		$17.7M Buy
1,222,077
+173,257
+17% +$2.72M ﹤0.01% 2807
2024
Q4 		$18.3M Buy
1,048,820
+179,618
+21% +$2.79M ﹤0.01% 2840
2024
Q3 		$9.62M Buy
869,202
+284,556
+49% +$2.99M ﹤0.01% 3460
2024
Q2 		$6.28M Sell
584,646
-427,196
-42% -$4.54M ﹤0.01% 3702
2024
Q1 		$11.5M Sell
1,011,842
-583,027
-37% -$5.84M ﹤0.01% 3232
2023
Q4 		$16.3M Sell
1,594,869
-50,141
-3% -$423K ﹤0.01% 2884
2023
Q3 		$12.3M Buy
1,645,010
+180,721
+12% +$1.42M ﹤0.01% 2925
2023
Q2 		$12.4M Buy
1,464,289
+314,033
+27% +$2.55M ﹤0.01% 2960
2023
Q1 		$9.82M Buy
1,150,256
+11,864
+1% +$94.1K ﹤0.01% 3157
2022
Q4 		$7.52M Sell
1,138,392
-645,172
-36% -$4.34M ﹤0.01% 3358
2022
Q3 		$13.3M Buy
1,783,564
+86,936
+5% +$612K ﹤0.01% 2649
2022
Q2 		$9.77M Sell
1,696,628
-117,046
-6% -$861K ﹤0.01% 3089
2022
Q1 		$14.6M Buy
1,813,674
+107,716
+6% +$928K ﹤0.01% 2447
2021
Q4 		$17.9M Buy
1,705,958
+807,782
+90% +$8.67M ﹤0.01% 2282
2021
Q3 		$9.18M Buy
898,176
+806,941
+884% +$8.14M ﹤0.01% 3001
2021
Q2 		$948K Sell
91,235
-86,727
-49% -$892K ﹤0.01% 5109
2021
Q1 		$1.86M Buy
177,962
+61,416
+53% +$721K ﹤0.01% 4306
2020
Q4 		$1.27M Buy
116,546
+116,376
+68,456% +$1.2M ﹤0.01% 4512
2020
Q3 		$2K Buy
+170
New +$1.76K ﹤0.01% 6576

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
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

Morgan Stanley's MIR Position: Q2 2026 in Review

Morgan Stanley increased its Mirion Technologies (MIR) stake by 71% in Q2 2026, buying an estimated $29.9M and bringing the position to 3,896,754 shares worth $69.9M. The position accounts for ﹤0.01% of the portfolio, ranked #1898.

Morgan Stanley first reported a position in MIR in Q3 2020 and has held it in 24 quarters since. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Morgan Stanley held 3,896,754 shares of Mirion Technologies worth $69.9M as of Q2 2026.
  • Morgan Stanley bought 1,611,686 Mirion Technologies shares in Q2 2026, an estimated $29.9M.
  • Mirion Technologies made up ﹤0.01% of Morgan Stanley's portfolio in Q2 2026, its #1898 holding.
  • Morgan Stanley first reported a position in Mirion Technologies in Q3 2020 and has held it in 24 quarters since.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Morgan Stanley's 13F filing for Q2 2026, filed 13 Aug 2026.