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Cliff Asness’s Mirion Technologies MIR Stock Holding History

Cliff Asness’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 		$3.72M Sell
207,596
-61,476
-23% -$1.14M ﹤0.01% 2195
2026
Q1 		$5M Sell
269,072
-8,647
-3% -$195K ﹤0.01% 1752
2025
Q4 		$6.5M Sell
277,719
-14,619
-5% -$365K ﹤0.01% 1420
2025
Q3 		$6.8M Sell
292,338
-19,922
-6% -$431K ﹤0.01% 1275
2025
Q2 		$6.72M Buy
312,260
+113,049
+57% +$1.95M 0.01% 1131
2025
Q1 		$2.89M Buy
199,211
+110,399
+124% +$1.74M ﹤0.01% 1409
2024
Q4 		$1.55M Buy
+88,812
New +$1.38M ﹤0.01% 1658

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

Cliff Asness's MIR Position: Q2 2026 in Review

Cliff Asness reduced its Mirion Technologies (MIR) stake by 23% in Q2 2026, selling an estimated $1.14M and leaving 207,596 shares worth $3.72M. The position accounts for ﹤0.01% of the portfolio, ranked #2195.

Cliff Asness first reported a position in MIR in Q4 2024 and has held it in 7 quarters since. The position peaked at $6.8M in Q3 2025. 349 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Cliff Asness held 207,596 shares of Mirion Technologies worth $3.72M as of Q2 2026.
  • Cliff Asness sold 61,476 Mirion Technologies shares in Q2 2026, an estimated $1.14M.
  • Mirion Technologies made up ﹤0.01% of Cliff Asness's portfolio in Q2 2026, its #2195 holding.
  • Cliff Asness first reported a position in Mirion Technologies in Q4 2024 and has held it in 7 quarters since.
  • Cliff Asness's Mirion Technologies position peaked at $6.8M in Q3 2025.
  • 349 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on AQR Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.