Dimensional Fund Advisors
MIR icon

Dimensional Fund Advisors’s Mirion Technologies MIR Stock Holding History

Dimensional Fund Advisors’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 		$87.1M Buy
4,859,755
+165,467
+4% +$3.07M 0.02% 1283
2026
Q1 		$87.2M Buy
4,694,288
+591,730
+14% +$13.3M 0.02% 1152
2025
Q4 		$96.1M Sell
4,102,558
-2,104,375
-34% -$52.5M 0.02% 1096
2025
Q3 		$144M Sell
6,206,933
-740,447
-11% -$16M 0.03% 784
2025
Q2 		$150M Sell
6,947,380
-416,574
-6% -$7.18M 0.03% 711
2025
Q1 		$107M Buy
7,363,954
+178,260
+2% +$2.8M 0.03% 921
2024
Q4 		$125M Buy
7,185,694
+171,918
+2% +$2.67M 0.03% 842
2024
Q3 		$77.6M Buy
7,013,776
+901,843
+15% +$9.49M 0.02% 1223
2024
Q2 		$65.6M Buy
6,111,933
+1,031,966
+20% +$11M 0.02% 1275
2024
Q1 		$57.8M Buy
5,079,967
+1,341,067
+36% +$13.4M 0.02% 1363
2023
Q4 		$38.3M Buy
3,738,900
+1,071,810
+40% +$9.05M 0.01% 1618
2023
Q3 		$19.9M Buy
2,667,090
+1,307,273
+96% +$10.3M 0.01% 1921
2023
Q2 		$11.5M Buy
+1,359,817
New +$11M ﹤0.01% 2195

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 $3.38T AUM 44.17% 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

Dimensional Fund Advisors's MIR Position: Q2 2026 in Review

Dimensional Fund Advisors increased its Mirion Technologies (MIR) stake by 3.5% in Q2 2026, buying an estimated $3.07M and bringing the position to 4,859,755 shares worth $87.1M. The position accounts for 0.02% of the portfolio, ranked #1283.

Dimensional Fund Advisors first reported a position in MIR in Q2 2023 and has held it in 13 quarters since. The position peaked at $150M in Q2 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Dimensional Fund Advisors held 4,859,755 shares of Mirion Technologies worth $87.1M as of Q2 2026.
  • Dimensional Fund Advisors bought 165,467 Mirion Technologies shares in Q2 2026, an estimated $3.07M.
  • Mirion Technologies made up 0.02% of Dimensional Fund Advisors's portfolio in Q2 2026, its #1283 holding.
  • Dimensional Fund Advisors first reported a position in Mirion Technologies in Q2 2023 and has held it in 13 quarters since.
  • Dimensional Fund Advisors's Mirion Technologies position peaked at $150M in Q2 2025.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Dimensional Fund Advisors's 13F filing for Q2 2026, filed 11 Aug 2026.