Atria Investments
MIR icon

Atria Investments’s Mirion Technologies MIR Stock Holding History

Atria Investments’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 		$554K Buy
30,922
+18,937
+158% +$351K 0.01% 1464
2026
Q1 		$223K Buy
11,985
+2,335
+24% +$52.7K ﹤0.01% 1932
2025
Q4 		$226K Buy
+9,650
New +$241K ﹤0.01% 1908

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

Atria Investments's MIR Position: Q2 2026 in Review

Atria Investments increased its Mirion Technologies (MIR) stake by 158% in Q2 2026, buying an estimated $351K and bringing the position to 30,922 shares worth $554K. The position accounts for 0.01% of the portfolio, ranked #1464.

Atria Investments first reported a position in MIR in Q4 2025 and has held it in 3 quarters since. 351 funds tracked by Wall St. Rank hold MIR as of Q2 2026.

  • Atria Investments held 30,922 shares of Mirion Technologies worth $554K as of Q2 2026.
  • Atria Investments bought 18,937 Mirion Technologies shares in Q2 2026, an estimated $351K.
  • Mirion Technologies made up 0.01% of Atria Investments's portfolio in Q2 2026, its #1464 holding.
  • Atria Investments first reported a position in Mirion Technologies in Q4 2025 and has held it in 3 quarters since.
  • 351 funds tracked by Wall St. Rank held Mirion Technologies as of Q2 2026.

Based on Atria Investments's 13F filing for Q2 2026, filed 28 Jul 2026.