Vanguard Group
MIR icon

Vanguard Group’s Mirion Technologies MIR Stock Holding History

Vanguard 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
2025
Q4 		$711M Sell
30,346,328
-71,999
-0.2% -$1.8M 0.01% 858
2025
Q3 		$708M Buy
30,418,327
+6,651,735
+28% +$144M 0.01% 863
2025
Q2 		$512M Buy
23,766,592
+508,544
+2% +$8.77M 0.01% 1017
2025
Q1 		$337M Sell
23,258,048
-651,754
-3% -$10.2M 0.01% 1216
2024
Q4 		$417M Buy
23,909,802
+227,178
+1% +$3.52M 0.01% 1142
2024
Q3 		$262M Buy
23,682,624
+1,797,077
+8% +$18.9M ﹤0.01% 1396
2024
Q2 		$235M Buy
21,885,547
+577,516
+3% +$6.14M ﹤0.01% 1414
2024
Q1 		$242M Buy
21,308,031
+159,404
+0.8% +$1.6M ﹤0.01% 1399
2023
Q4 		$217M Sell
21,148,627
-179,347
-0.8% -$1.51M ﹤0.01% 1464
2023
Q3 		$159M Buy
21,327,974
+2,029,698
+11% +$16M ﹤0.01% 1554
2023
Q2 		$163M Buy
19,298,276
+934,000
+5% +$7.58M ﹤0.01% 1574
2023
Q1 		$157M Buy
18,364,276
+5,786,779
+46% +$45.9M ﹤0.01% 1584
2022
Q4 		$83.1M Buy
12,577,497
+86,550
+0.7% +$583K ﹤0.01% 1907
2022
Q3 		$93.3M Buy
12,490,947
+1,753,745
+16% +$12.4M ﹤0.01% 1826
2022
Q2 		$61.8M Buy
10,737,202
+3,581,075
+50% +$26.3M ﹤0.01% 2089
2022
Q1 		$57.8M Buy
7,156,127
+127,370
+2% +$1.1M ﹤0.01% 2234
2021
Q4 		$73.6M Buy
+7,028,757
New +$75.5M ﹤0.01% 2138

Other funds holding MIR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
CLG
Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Vanguard Group's MIR Position: Q4 2025 in Review

Vanguard Group reduced its Mirion Technologies (MIR) stake by 0.24% in Q4 2025, selling an estimated $1.8M and leaving 30,346,328 shares worth $711M. The position accounts for 0.01% of the portfolio, ranked #858.

Vanguard Group first reported a position in MIR in Q4 2021 and has held it in 17 quarters since. 365 funds tracked by Wall St. Rank hold MIR as of Q4 2025.

  • Vanguard Group held 30,346,328 shares of Mirion Technologies worth $711M as of Q4 2025.
  • Vanguard Group sold 71,999 Mirion Technologies shares in Q4 2025, an estimated $1.8M.
  • Mirion Technologies made up 0.01% of Vanguard Group's portfolio in Q4 2025, its #858 holding.
  • Vanguard Group first reported a position in Mirion Technologies in Q4 2021 and has held it in 17 quarters since.
  • 365 funds tracked by Wall St. Rank held Mirion Technologies as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.