Twin Tree Management
MIR icon

Twin Tree Management’s Mirion Technologies MIR Stock Holding History

Twin Tree Management’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 		– Sell
-13,000
Closed -$242K – 1599
2026
Q1 		$242K Sell
13,000
-1,200
-8% -$27.1K 0.01% 1058
2025
Q4 		$333K Sell
14,200
-22,000
-61% -$549K ﹤0.01% 1189
2025
Q3 		$842K Buy
+36,200
New +$783K ﹤0.01% 1210

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

Twin Tree Management's MIR Position: Q2 2026 in Review

Twin Tree Management sold out of Mirion Technologies (MIR) in Q2 2026, closing a stake of 38,075 shares — an estimated $708K sold.

Twin Tree Management first reported a position in MIR in Q2 2025 and held it in 4 quarters. The position peaked at $1.75M in Q3 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Twin Tree Management reported no remaining Mirion Technologies position as of Q2 2026 after selling out during the quarter.
  • Twin Tree Management sold 38,075 Mirion Technologies shares in Q2 2026, an estimated $708K.
  • Twin Tree Management first reported a position in Mirion Technologies in Q2 2025 and held it in 4 quarters.
  • Twin Tree Management's Mirion Technologies position peaked at $1.75M in Q3 2025.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.