AIM
MIR icon

Aigen Investment Management’s Mirion Technologies MIR Stock Holding History

Aigen Investment 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
-10,827
Closed -$201K – 706
2026
Q1 		$201K Buy
10,827
+305
+3% +$6.88K 0.05% 431
2025
Q4 		$246K Buy
+10,522
New +$262K 0.06% 414
2025
Q3 		– Sell
-18,596
Closed -$400K – 972
2025
Q2 		$400K Buy
+18,596
New +$321K 0.05% 452

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
Cooperman Leon G
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
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.35% 1-Year Est. Return

Aigen Investment Management's MIR Position: Q2 2026 in Review

Aigen Investment Management sold out of Mirion Technologies (MIR) in Q2 2026, closing a stake of 10,827 shares — an estimated $201K sold.

Aigen Investment Management first reported a position in MIR in Q2 2025 and held it in 3 quarters. The position peaked at $400K in Q2 2025. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Aigen Investment Management reported no remaining Mirion Technologies position as of Q2 2026 after selling out during the quarter.
  • Aigen Investment Management sold 10,827 Mirion Technologies shares in Q2 2026, an estimated $201K.
  • Aigen Investment Management first reported a position in Mirion Technologies in Q2 2025 and held it in 3 quarters.
  • Aigen Investment Management's Mirion Technologies position peaked at $400K in Q2 2025.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

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