UBS Group
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UBS Group’s Mirion Technologies MIR Stock Holding History

UBS 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
Q1 		$70M Sell
3,766,842
-1,085,745
-22% -$24.5M 0.01% 1315
2025
Q4 		$114M Buy
4,852,587
+55,754
+1% +$1.39M 0.02% 944
2025
Q3 		$112M Buy
4,796,833
+3,092,136
+181% +$66.8M 0.02% 949
2025
Q2 		$36.7M Buy
1,704,697
+207,491
+14% +$3.58M 0.01% 1794
2025
Q1 		$21.7M Sell
1,497,206
-49,275
-3% -$775K ﹤0.01% 2233
2024
Q4 		$27M Buy
1,546,481
+902,024
+140% +$14M 0.01% 2013
2024
Q3 		$7.13M Buy
644,457
+219,535
+52% +$2.31M ﹤0.01% 2716
2024
Q2 		$4.56M Sell
424,922
-153,078
-26% -$1.63M ﹤0.01% 2962
2024
Q1 		$6.57M Buy
578,000
+208,628
+56% +$2.09M ﹤0.01% 2672
2023
Q4 		$3.79M Buy
369,372
+234,970
+175% +$1.98M ﹤0.01% 3073
2023
Q3 		$1M Sell
134,402
-2,253
-2% -$17.8K ﹤0.01% 4074
2023
Q2 		$1.15M Buy
136,655
+83,119
+155% +$674K ﹤0.01% 4109
2023
Q1 		$457K Buy
53,536
+46,369
+647% +$368K ﹤0.01% 4763
2022
Q4 		$47.4K Sell
7,167
-2,833
-28% -$19.1K ﹤0.01% 6823
2022
Q3 		$75K Sell
10,000
-48,000
-83% -$338K ﹤0.01% 5971
2022
Q2 		$334K Sell
58,000
-56,000
-49% -$412K ﹤0.01% 4565
2022
Q1 		$920K Sell
114,000
-27,153
-19% -$234K ﹤0.01% 4182
2021
Q4 		$1.48M Buy
141,153
+127,530
+936% +$1.37M ﹤0.01% 4025
2021
Q3 		$139K Sell
13,623
-15,420
-53% -$156K ﹤0.01% 5593
2021
Q2 		$302K Sell
29,043
-18,117
-38% -$186K ﹤0.01% 5080
2021
Q1 		$492K Sell
47,160
-18,369
-28% -$216K ﹤0.01% 4881
2020
Q4 		$714K Buy
65,529
+2,125
+3% +$21.9K ﹤0.01% 4293
2020
Q3 		$682K Buy
+63,404
New +$658K ﹤0.01% 3932

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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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

UBS Group's MIR Position: Q1 2026 in Review

UBS Group reduced its Mirion Technologies (MIR) stake by 22% in Q1 2026, selling an estimated $24.5M and leaving 3,766,842 shares worth $70M. The position accounts for 0.01% of the portfolio, ranked #1315.

UBS Group first reported a position in MIR in Q3 2020 and has held it in 23 quarters since. The position peaked at $114M in Q4 2025. 361 funds tracked by Wall St. Rank hold MIR as of Q1 2026.

  • UBS Group held 3,766,842 shares of Mirion Technologies worth $70M as of Q1 2026.
  • UBS Group sold 1,085,745 Mirion Technologies shares in Q1 2026, an estimated $24.5M.
  • Mirion Technologies made up 0.01% of UBS Group's portfolio in Q1 2026, its #1315 holding.
  • UBS Group first reported a position in Mirion Technologies in Q3 2020 and has held it in 23 quarters since.
  • UBS Group's Mirion Technologies position peaked at $114M in Q4 2025.
  • 361 funds tracked by Wall St. Rank held Mirion Technologies as of Q1 2026.

Based on UBS Group's 13F filing for Q1 2026, filed 5 May 2026.